diff --git a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledSmsProvisioningDtoConverterTest.java b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledSmsProvisioningDtoConverterTest.java
index 3a7ff9d00..1e5f302b0 100644
--- a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledSmsProvisioningDtoConverterTest.java
+++ b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledSmsProvisioningDtoConverterTest.java
@@ -24,7 +24,7 @@ void convert() {
 
     ScheduledSmsProvisioning converted =
         ScheduledSmsProvisioningDtoConverter.convert(
-            SmsConfigurationDtoTest.configuration.getScheduledProvisioning());
+            SmsConfigurationDtoTest.configurationResponse.getScheduledProvisioning());
     TestHelpers.recursiveEquals(provisioning, converted);
   }
 }
diff --git a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledVoiceProvisioningDtoConverterTest.java b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledVoiceProvisioningDtoConverterTest.java
index a27a5d0f6..222852dfe 100644
--- a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledVoiceProvisioningDtoConverterTest.java
+++ b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/ScheduledVoiceProvisioningDtoConverterTest.java
@@ -20,7 +20,7 @@ void convert() {
 
     ScheduledVoiceProvisioning converted =
         ScheduledVoiceProvisioningDtoConverter.convert(
-            VoiceConfigurationDtoTest.configurationRTC.getScheduledProvisioning());
+            VoiceConfigurationDtoTest.configurationResponseRTC.getScheduledProvisioning());
     TestHelpers.recursiveEquals(provisioning, converted);
   }
 }
diff --git a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/SmsConfigurationDtoConverterTest.java b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/SmsConfigurationDtoConverterTest.java
index 4cb3ef798..094ee4f29 100644
--- a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/SmsConfigurationDtoConverterTest.java
+++ b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/SmsConfigurationDtoConverterTest.java
@@ -15,7 +15,7 @@ class SmsConfigurationDtoConverterTest {
   void convertDto() {
 
     SMSConfiguration converted =
-        SmsConfigurationDtoConverter.convert(SmsConfigurationDtoTest.configuration);
+        SmsConfigurationDtoConverter.convert(SmsConfigurationDtoTest.configurationResponse);
     TestHelpers.recursiveEquals(configuration, converted);
   }
 }
diff --git a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/VoiceConfigurationDtoConverterTest.java b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/VoiceConfigurationDtoConverterTest.java
index 8ddf1b330..4b2bedfe4 100644
--- a/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/VoiceConfigurationDtoConverterTest.java
+++ b/client/src/test/java/com/sinch/sdk/domains/numbers/adapters/converters/VoiceConfigurationDtoConverterTest.java
@@ -18,7 +18,7 @@ class VoiceConfigurationDtoConverterTest {
   void convert() {
 
     VoiceConfiguration converted =
-        VoiceConfigurationDtoConverter.convert(VoiceConfigurationDtoTest.configurationRTC);
+        VoiceConfigurationDtoConverter.convert(VoiceConfigurationDtoTest.configurationResponseRTC);
     TestHelpers.recursiveEquals(configuration, converted);
   }
 }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumber.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumber.java
index d5a877ba4..9a74a8162 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumber.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumber.java
@@ -47,6 +47,7 @@ public interface ActiveNumber {
    * or <code>SE</code>.
    *
    * @return regionCode
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getRegionCode();
 
@@ -75,6 +76,7 @@ public interface ActiveNumber {
    * How often the recurring price is charged in months.
    *
    * @return paymentIntervalMonths
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Integer getPaymentIntervalMonths();
 
@@ -82,6 +84,7 @@ public interface ActiveNumber {
    * The date of the next charge.
    *
    * @return nextChargeDate
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getNextChargeDate();
 
@@ -89,6 +92,7 @@ public interface ActiveNumber {
    * The timestamp when the subscription will expire if an expiration date has been set.
    *
    * @return expireAt
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getExpireAt();
 
@@ -158,6 +162,7 @@ interface Builder {
      * @param regionCode see getter
      * @return Current builder
      * @see #getRegionCode
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setRegionCode(String regionCode);
 
@@ -194,6 +199,7 @@ interface Builder {
      * @param paymentIntervalMonths see getter
      * @return Current builder
      * @see #getPaymentIntervalMonths
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setPaymentIntervalMonths(Integer paymentIntervalMonths);
 
@@ -203,6 +209,7 @@ interface Builder {
      * @param nextChargeDate see getter
      * @return Current builder
      * @see #getNextChargeDate
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setNextChargeDate(Instant nextChargeDate);
 
@@ -212,6 +219,7 @@ interface Builder {
      * @param expireAt see getter
      * @return Current builder
      * @see #getExpireAt
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setExpireAt(Instant expireAt);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberImpl.java
index 79badefc0..4d26f65fb 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberImpl.java
@@ -152,8 +152,7 @@ public String getRegionCode() {
     return regionCode.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_REGION_CODE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> regionCode() {
     return regionCode;
   }
@@ -196,8 +195,7 @@ public Integer getPaymentIntervalMonths() {
     return paymentIntervalMonths.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_PAYMENT_INTERVAL_MONTHS)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Integer> paymentIntervalMonths() {
     return paymentIntervalMonths;
   }
@@ -207,8 +205,7 @@ public Instant getNextChargeDate() {
     return nextChargeDate.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_NEXT_CHARGE_DATE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> nextChargeDate() {
     return nextChargeDate;
   }
@@ -218,8 +215,7 @@ public Instant getExpireAt() {
     return expireAt.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_EXPIRE_AT)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> expireAt() {
     return expireAt;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioning.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioning.java
index 80b467a8b..cfc0c0186 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioning.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioning.java
@@ -25,6 +25,7 @@ public interface ScheduledSmsProvisioning {
    * The SMS service plan that the scheduled provisioning job will configured with the number.
    *
    * @return servicePlanId
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getServicePlanId();
 
@@ -32,6 +33,7 @@ public interface ScheduledSmsProvisioning {
    * TCR campaign ID that the scheduled provisioning job will configure with the number.
    *
    * @return campaignId
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getCampaignId();
 
@@ -46,6 +48,7 @@ public interface ScheduledSmsProvisioning {
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -53,6 +56,7 @@ public interface ScheduledSmsProvisioning {
    * Get errorCodes
    *
    * @return errorCodes
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   List<SmsErrorCode> getErrorCodes();
 
@@ -74,6 +78,7 @@ interface Builder {
      * @param servicePlanId see getter
      * @return Current builder
      * @see #getServicePlanId
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setServicePlanId(String servicePlanId);
 
@@ -83,6 +88,7 @@ interface Builder {
      * @param campaignId see getter
      * @return Current builder
      * @see #getCampaignId
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setCampaignId(String campaignId);
 
@@ -101,6 +107,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
@@ -110,6 +117,7 @@ interface Builder {
      * @param errorCodes see getter
      * @return Current builder
      * @see #getErrorCodes
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setErrorCodes(List<SmsErrorCode> errorCodes);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioningImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioningImpl.java
index 280dae1d2..bf4e39701 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioningImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledSmsProvisioningImpl.java
@@ -63,8 +63,7 @@ public String getServicePlanId() {
     return servicePlanId.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_SERVICE_PLAN_ID)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> servicePlanId() {
     return servicePlanId;
   }
@@ -74,8 +73,7 @@ public String getCampaignId() {
     return campaignId.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_CAMPAIGN_ID)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> campaignId() {
     return campaignId;
   }
@@ -96,8 +94,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
@@ -107,8 +104,7 @@ public List<SmsErrorCode> getErrorCodes() {
     return errorCodes.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_ERROR_CODES)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<List<SmsErrorCode>> errorCodes() {
     return errorCodes;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioning.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioning.java
index fbec99141..35e3c5ba8 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioning.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioning.java
@@ -19,6 +19,7 @@ public interface ScheduledVoiceProvisioning {
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -38,6 +39,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningEST.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningEST.java
index ac9acf7ee..32384b33f 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningEST.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningEST.java
@@ -22,6 +22,7 @@ public interface ScheduledVoiceProvisioningEST
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -58,6 +59,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningESTImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningESTImpl.java
index 825bee00e..f50a7cc2e 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningESTImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningESTImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAX.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAX.java
index df4fd6f43..00ccae1c4 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAX.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAX.java
@@ -22,6 +22,7 @@ public interface ScheduledVoiceProvisioningFAX
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -59,6 +60,7 @@ interface Builder
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAXImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAXImpl.java
index e196e5159..4f4be5182 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAXImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningFAXImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTC.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTC.java
index 4498882ac..4e7aa0b44 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTC.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTC.java
@@ -22,6 +22,7 @@ public interface ScheduledVoiceProvisioningRTC
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -59,6 +60,7 @@ interface Builder
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTCImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTCImpl.java
index d5eaf2929..9599fdbbb 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTCImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningRTCImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfiguration.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfiguration.java
index c154eb16e..9c1bebdfb 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfiguration.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfiguration.java
@@ -19,6 +19,7 @@ public interface VoiceConfiguration {
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -38,6 +39,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationEST.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationEST.java
index bfc85482e..fefe0bd6c 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationEST.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationEST.java
@@ -22,6 +22,7 @@ public interface VoiceConfigurationEST
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -58,6 +59,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationESTImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationESTImpl.java
index 6cec67605..4c72e7812 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationESTImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationESTImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAX.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAX.java
index d0283e33c..28a2540d2 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAX.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAX.java
@@ -22,6 +22,7 @@ public interface VoiceConfigurationFAX
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -58,6 +59,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAXImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAXImpl.java
index 0ac53ea7d..2efd7de6a 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAXImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationFAXImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTC.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTC.java
index a6e505559..44c4f93dd 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTC.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTC.java
@@ -22,6 +22,7 @@ public interface VoiceConfigurationRTC
    * Timestamp when the status was last updated.
    *
    * @return lastUpdatedTime
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Instant getLastUpdatedTime();
 
@@ -58,6 +59,7 @@ interface Builder {
      * @param lastUpdatedTime see getter
      * @return Current builder
      * @see #getLastUpdatedTime
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setLastUpdatedTime(Instant lastUpdatedTime);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTCImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTCImpl.java
index 6442503b6..9b952392d 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTCImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationRTCImpl.java
@@ -69,8 +69,7 @@ public Instant getLastUpdatedTime() {
     return lastUpdatedTime.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_LAST_UPDATED_TIME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Instant> lastUpdatedTime() {
     return lastUpdatedTime;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegion.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegion.java
index b4bed8d67..6cf52e173 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegion.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegion.java
@@ -22,6 +22,7 @@ public interface AvailableRegion {
    * ISO 3166-1 alpha-2 region code. Examples: <code>US</code>, <code>GB</code> or <code>SE</code>.
    *
    * @return regionCode
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getRegionCode();
 
@@ -29,6 +30,7 @@ public interface AvailableRegion {
    * Display name of the region. Examples: United States, United Kingdom or Sweden.
    *
    * @return regionName
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getRegionName();
 
@@ -37,6 +39,7 @@ public interface AvailableRegion {
    * </code>.
    *
    * @return types
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   List<NumberType> getTypes();
 
@@ -58,6 +61,7 @@ interface Builder {
      * @param regionCode see getter
      * @return Current builder
      * @see #getRegionCode
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setRegionCode(String regionCode);
 
@@ -67,6 +71,7 @@ interface Builder {
      * @param regionName see getter
      * @return Current builder
      * @see #getRegionName
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setRegionName(String regionName);
 
@@ -76,6 +81,7 @@ interface Builder {
      * @param types see getter
      * @return Current builder
      * @see #getTypes
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setTypes(List<NumberType> types);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegionImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegionImpl.java
index f461417a1..3782eb781 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegionImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/regions/available/response/AvailableRegionImpl.java
@@ -49,8 +49,7 @@ public String getRegionCode() {
     return regionCode.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_REGION_CODE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> regionCode() {
     return regionCode;
   }
@@ -60,8 +59,7 @@ public String getRegionName() {
     return regionName.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_REGION_NAME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> regionName() {
     return regionName;
   }
@@ -71,8 +69,7 @@ public List<NumberType> getTypes() {
     return types.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_TYPES)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<List<NumberType>> types() {
     return types;
   }
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumber.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumber.java
index 8e4ac653c..c4e772ed8 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumber.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumber.java
@@ -30,6 +30,7 @@ public interface AvailableNumber {
    * leading <code>+</code>.
    *
    * @return phoneNumber
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getPhoneNumber();
 
@@ -38,6 +39,7 @@ public interface AvailableNumber {
    * or <code>SE</code>.
    *
    * @return regionCode
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   String getRegionCode();
 
@@ -73,6 +75,7 @@ public interface AvailableNumber {
    * How often the recurring price is charged in months.
    *
    * @return paymentIntervalMonths
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Integer getPaymentIntervalMonths();
 
@@ -80,6 +83,7 @@ public interface AvailableNumber {
    * Whether or not supplementary documentation will be required to complete the number rental.
    *
    * @return supportingDocumentationRequired
+   * @readOnly <em>This field is returned by the server and cannot be modified</em>
    */
   Boolean getSupportingDocumentationRequired();
 
@@ -101,6 +105,7 @@ interface Builder {
      * @param phoneNumber see getter
      * @return Current builder
      * @see #getPhoneNumber
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setPhoneNumber(String phoneNumber);
 
@@ -110,6 +115,7 @@ interface Builder {
      * @param regionCode see getter
      * @return Current builder
      * @see #getRegionCode
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setRegionCode(String regionCode);
 
@@ -155,6 +161,7 @@ interface Builder {
      * @param paymentIntervalMonths see getter
      * @return Current builder
      * @see #getPaymentIntervalMonths
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setPaymentIntervalMonths(Integer paymentIntervalMonths);
 
@@ -164,6 +171,7 @@ interface Builder {
      * @param supportingDocumentationRequired see getter
      * @return Current builder
      * @see #getSupportingDocumentationRequired
+     * @readOnly <em>This field is returned by the server and cannot be modified</em>
      */
     Builder setSupportingDocumentationRequired(Boolean supportingDocumentationRequired);
 
diff --git a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumberImpl.java b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumberImpl.java
index 4d2b5cfdb..58a99c936 100644
--- a/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumberImpl.java
+++ b/openapi-contracts/src/main/com/sinch/sdk/domains/numbers/models/v1/response/AvailableNumberImpl.java
@@ -87,8 +87,7 @@ public String getPhoneNumber() {
     return phoneNumber.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_PHONE_NUMBER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> phoneNumber() {
     return phoneNumber;
   }
@@ -98,8 +97,7 @@ public String getRegionCode() {
     return regionCode.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_REGION_CODE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<String> regionCode() {
     return regionCode;
   }
@@ -153,8 +151,7 @@ public Integer getPaymentIntervalMonths() {
     return paymentIntervalMonths.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_PAYMENT_INTERVAL_MONTHS)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Integer> paymentIntervalMonths() {
     return paymentIntervalMonths;
   }
@@ -164,8 +161,7 @@ public Boolean getSupportingDocumentationRequired() {
     return supportingDocumentationRequired.orElse(null);
   }
 
-  @JsonProperty(JSON_PROPERTY_SUPPORTING_DOCUMENTATION_REQUIRED)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  @JsonIgnore
   public OptionalValue<Boolean> supportingDocumentationRequired() {
     return supportingDocumentationRequired;
   }
diff --git a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberDtoTest.java b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberDtoTest.java
index 3ae0df20c..17b481528 100644
--- a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberDtoTest.java
+++ b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ActiveNumberDtoTest.java
@@ -40,8 +40,8 @@ public class ActiveNumberDtoTest extends NumbersBaseTest {
           .setPaymentIntervalMonths(1)
           .setNextChargeDate(Instant.parse("2023-09-22T15:49:58.813424Z"))
           .setExpireAt(Instant.parse("2023-10-06T15:49:58.813381Z"))
-          .setSmsConfiguration(SmsConfigurationDtoTest.configuration)
-          .setVoiceConfiguration(VoiceConfigurationDtoTest.configurationRTC)
+          .setSmsConfiguration(SmsConfigurationDtoTest.configurationResponse)
+          .setVoiceConfiguration(VoiceConfigurationDtoTest.configurationResponseRTC)
           .setCallbackUrl("foo callback")
           .build();
 
@@ -95,14 +95,6 @@ public class ActiveNumberDtoTest extends NumbersBaseTest {
           .setTotalSize(1)
           .build();
 
-  @Test
-  void serialize() throws JsonProcessingException, JSONException {
-
-    String serializedString = objectMapper.writeValueAsString(activeNumber);
-
-    JSONAssert.assertEquals(activeNumberJson, serializedString, true);
-  }
-
   @Test
   void deserialize() throws JsonProcessingException {
 
diff --git a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningDtoTest.java b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningDtoTest.java
index b277c910a..7240d3d7a 100644
--- a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningDtoTest.java
+++ b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/ScheduledVoiceProvisioningDtoTest.java
@@ -7,9 +7,7 @@
 import com.sinch.sdk.domains.numbers.api.v1.adapters.NumbersBaseTest;
 import com.sinch.sdk.domains.numbers.models.v1.internal.ScheduledVoiceProvisioningInternalImpl;
 import java.time.Instant;
-import org.json.JSONException;
 import org.junit.jupiter.api.Test;
-import org.skyscreamer.jsonassert.JSONAssert;
 
 @TestWithResources
 public class ScheduledVoiceProvisioningDtoTest extends NumbersBaseTest {
@@ -43,14 +41,6 @@ public class ScheduledVoiceProvisioningDtoTest extends NumbersBaseTest {
           .setLastUpdatedTime(Instant.parse("2024-07-01T11:58:35.610198Z"))
           .build();
 
-  @Test
-  void serializeEST() throws JsonProcessingException, JSONException {
-
-    String serializedString = objectMapper.writeValueAsString(provisioningEST);
-
-    JSONAssert.assertEquals(provisioningJsonEST, serializedString, true);
-  }
-
   @Test
   void deserializeEST() throws JsonProcessingException {
 
@@ -61,14 +51,6 @@ void deserializeEST() throws JsonProcessingException {
         provisioningEST, deserializedString.getScheduledVoiceProvisioningESTImpl());
   }
 
-  @Test
-  void serializeFAX() throws JsonProcessingException, JSONException {
-
-    String serializedString = objectMapper.writeValueAsString(provisioningFAX);
-
-    JSONAssert.assertEquals(provisioningJsonFAX, serializedString, true);
-  }
-
   @Test
   void deserializeFAX() throws JsonProcessingException {
 
@@ -79,14 +61,6 @@ void deserializeFAX() throws JsonProcessingException {
         provisioningFAX, deserializedString.getScheduledVoiceProvisioningFAXImpl());
   }
 
-  @Test
-  void serializeRTC() throws JsonProcessingException, JSONException {
-
-    String serializedString = objectMapper.writeValueAsString(provisioningRTC);
-
-    JSONAssert.assertEquals(provisioningJsonRTC, serializedString, true);
-  }
-
   @Test
   void deserializeRTC() throws JsonProcessingException {
 
diff --git a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/SmsConfigurationDtoTest.java b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/SmsConfigurationDtoTest.java
index 00c72dba6..7ace72dfa 100644
--- a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/SmsConfigurationDtoTest.java
+++ b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/SmsConfigurationDtoTest.java
@@ -18,8 +18,11 @@
 @TestWithResources
 public class SmsConfigurationDtoTest extends NumbersBaseTest {
 
-  @GivenTextResource("/domains/numbers/v1/active/SmsConfigurationDto.json")
-  String configurationJSON;
+  @GivenTextResource("/domains/numbers/v1/active/SmsConfigurationRequestDto.json")
+  String configurationRequestJSON;
+
+  @GivenTextResource("/domains/numbers/v1/active/SmsConfigurationResponseDto.json")
+  String configurationResponseJSON;
 
   @GivenTextResource("/domains/numbers/v1/active/SmsConfigurationDtoServicePlanIdNull.json")
   String SMSConfigurationDtoServicePlanIdNull;
@@ -27,7 +30,12 @@ public class SmsConfigurationDtoTest extends NumbersBaseTest {
   @GivenTextResource("/domains/numbers/v1/active/SmsConfigurationDtoServicePlanIdValue.json")
   String SMSConfigurationDtoServicePlanIdValue;
 
-  public static SmsConfiguration configuration =
+  public static SmsConfiguration configurationRequest =
+      SmsConfiguration.builder()
+          .setServicePlanId("service plan id")
+          .setCampaignId("campaign id")
+          .build();
+  public static SmsConfiguration configurationResponse =
       SmsConfiguration.builder()
           .setServicePlanId("service plan id")
           .setCampaignId("campaign id")
@@ -44,18 +52,18 @@ public class SmsConfigurationDtoTest extends NumbersBaseTest {
   @Test
   void serialize() throws JsonProcessingException, JSONException {
 
-    String serializedString = objectMapper.writeValueAsString(configuration);
+    String serializedString = objectMapper.writeValueAsString(configurationRequest);
 
-    JSONAssert.assertEquals(configurationJSON, serializedString, true);
+    JSONAssert.assertEquals(configurationRequestJSON, serializedString, true);
   }
 
   @Test
   void deserialize() throws JsonProcessingException {
 
     SmsConfiguration deserializedString =
-        objectMapper.readValue(configurationJSON, configuration.getClass());
+        objectMapper.readValue(configurationResponseJSON, SmsConfiguration.class);
 
-    TestHelpers.recursiveEquals(configuration, deserializedString);
+    TestHelpers.recursiveEquals(configurationResponse, deserializedString);
   }
 
   @Test
diff --git a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationDtoTest.java b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationDtoTest.java
index f2acf2f99..693fc8143 100644
--- a/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationDtoTest.java
+++ b/openapi-contracts/src/test/java/com/sinch/sdk/domains/numbers/models/v1/VoiceConfigurationDtoTest.java
@@ -14,32 +14,50 @@
 @TestWithResources
 public class VoiceConfigurationDtoTest extends NumbersBaseTest {
 
-  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationDtoEST.json")
-  String configurationJsonEST;
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationRequestDtoEST.json")
+  String configurationRequestJsonEST;
 
-  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationDtoFAX.json")
-  String configurationJsonFAX;
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationResponseDtoEST.json")
+  String configurationResponseJsonEST;
 
-  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationDtoRTC.json")
-  String configurationJsonRTC;
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationRequestDtoFAX.json")
+  String configurationRequestJsonFAX;
+
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationResponseDtoFAX.json")
+  String configurationResponseJsonFAX;
+
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationRequestDtoRTC.json")
+  String configurationRequestJsonRTC;
+
+  @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationResponseDtoRTC.json")
+  String configurationResponseJsonRTC;
 
   @GivenTextResource("/domains/numbers/v1/active/VoiceConfigurationDtoRTCSwitchToFAX.json")
   String configurationJsonRTCSwitchToFAX;
 
-  public static VoiceConfigurationEST configurationEST =
+  public static VoiceConfigurationEST configurationRequestEST =
+      VoiceConfigurationEST.builder().setTrunkId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE").build();
+
+  public static VoiceConfigurationEST configurationResponseEST =
       VoiceConfigurationEST.builder()
           .setTrunkId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE")
           .setLastUpdatedTime(Instant.parse("2024-06-30T07:08:09.10Z"))
           .setScheduledProvisioning(ScheduledVoiceProvisioningDtoTest.provisioningEST)
           .build();
+  public static VoiceConfigurationFAX configurationRequestFAX =
+      VoiceConfigurationFAX.builder().setServiceId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE").build();
 
-  public static VoiceConfigurationFAX configurationFAX =
+  public static VoiceConfigurationFAX configurationResponseFAX =
       VoiceConfigurationFAX.builder()
           .setServiceId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE")
           .setLastUpdatedTime(Instant.parse("2024-06-30T07:08:09.10Z"))
           .setScheduledProvisioning(ScheduledVoiceProvisioningDtoTest.provisioningFAX)
           .build();
-  public static VoiceConfigurationRTC configurationRTC =
+
+  public static VoiceConfigurationRTC configurationRequestRTC =
+      VoiceConfigurationRTC.builder().setAppId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE").build();
+
+  public static VoiceConfigurationRTC configurationResponseRTC =
       VoiceConfigurationRTC.builder()
           .setAppId("AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE")
           .setLastUpdatedTime(Instant.parse("2024-06-30T07:08:09.10Z"))
@@ -56,52 +74,52 @@ public class VoiceConfigurationDtoTest extends NumbersBaseTest {
   @Test
   void serializeEST() throws JsonProcessingException, JSONException {
 
-    String serializedString = objectMapper.writeValueAsString(configurationEST);
+    String serializedString = objectMapper.writeValueAsString(configurationRequestEST);
 
-    JSONAssert.assertEquals(configurationJsonEST, serializedString, true);
+    JSONAssert.assertEquals(configurationRequestJsonEST, serializedString, true);
   }
 
   @Test
   void deserializeEST() throws JsonProcessingException {
 
     VoiceConfiguration deserializedString =
-        objectMapper.readValue(configurationJsonEST, VoiceConfigurationEST.class);
+        objectMapper.readValue(configurationResponseJsonEST, VoiceConfigurationEST.class);
 
-    TestHelpers.recursiveEquals(configurationEST, deserializedString);
+    TestHelpers.recursiveEquals(configurationResponseEST, deserializedString);
   }
 
   @Test
   void serializeFAX() throws JsonProcessingException, JSONException {
 
-    String serializedString = objectMapper.writeValueAsString(configurationFAX);
+    String serializedString = objectMapper.writeValueAsString(configurationRequestFAX);
 
-    JSONAssert.assertEquals(configurationJsonFAX, serializedString, true);
+    JSONAssert.assertEquals(configurationRequestJsonFAX, serializedString, true);
   }
 
   @Test
   void deserializeFAX() throws JsonProcessingException {
 
     VoiceConfiguration deserializedString =
-        objectMapper.readValue(configurationJsonFAX, VoiceConfigurationFAX.class);
+        objectMapper.readValue(configurationResponseJsonFAX, VoiceConfigurationFAX.class);
 
-    TestHelpers.recursiveEquals(configurationFAX, deserializedString);
+    TestHelpers.recursiveEquals(configurationResponseFAX, deserializedString);
   }
 
   @Test
   void serializeRTC() throws JsonProcessingException, JSONException {
 
-    String serializedString = objectMapper.writeValueAsString(configurationRTC);
+    String serializedString = objectMapper.writeValueAsString(configurationRequestRTC);
 
-    JSONAssert.assertEquals(configurationJsonRTC, serializedString, true);
+    JSONAssert.assertEquals(configurationRequestJsonRTC, serializedString, true);
   }
 
   @Test
   void deserializeRTC() throws JsonProcessingException {
 
     VoiceConfiguration deserializedString =
-        objectMapper.readValue(configurationJsonRTC, VoiceConfigurationRTC.class);
+        objectMapper.readValue(configurationResponseJsonRTC, VoiceConfigurationRTC.class);
 
-    TestHelpers.recursiveEquals(configurationRTC, deserializedString);
+    TestHelpers.recursiveEquals(configurationResponseRTC, deserializedString);
   }
 
   @Test
@@ -117,7 +135,7 @@ void deserializeRTCSwitchToFax() throws JsonProcessingException {
   void deserialize() throws JsonProcessingException {
 
     VoiceConfigurationInternalImpl deserializedString =
-        objectMapper.readValue(configurationJsonRTC, VoiceConfigurationInternalImpl.class);
-    TestHelpers.recursiveEquals(configurationRTC, deserializedString.getActualInstance());
+        objectMapper.readValue(configurationRequestJsonRTC, VoiceConfigurationInternalImpl.class);
+    TestHelpers.recursiveEquals(configurationRequestRTC, deserializedString.getActualInstance());
   }
 }
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationRequestDto.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationRequestDto.json
new file mode 100644
index 000000000..1736f0f60
--- /dev/null
+++ b/openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationRequestDto.json
@@ -0,0 +1,4 @@
+{
+  "servicePlanId": "service plan id",
+  "campaignId": "campaign id"
+}
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationDto.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationResponseDto.json
similarity index 100%
rename from openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationDto.json
rename to openapi-contracts/src/test/resources/domains/numbers/v1/active/SmsConfigurationResponseDto.json
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoEST.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoEST.json
new file mode 100644
index 000000000..eae9135ce
--- /dev/null
+++ b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoEST.json
@@ -0,0 +1,4 @@
+{
+  "trunkId": "AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE",
+  "type": "EST"
+}
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoFAX.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoFAX.json
new file mode 100644
index 000000000..d09bda7a8
--- /dev/null
+++ b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoFAX.json
@@ -0,0 +1,4 @@
+{
+  "serviceId": "AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE",
+  "type": "FAX"
+}
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoRTC.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoRTC.json
new file mode 100644
index 000000000..f5842acce
--- /dev/null
+++ b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationRequestDtoRTC.json
@@ -0,0 +1,4 @@
+{
+  "appId": "AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEE",
+  "type": "RTC"
+}
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoEST.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoEST.json
similarity index 100%
rename from openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoEST.json
rename to openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoEST.json
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoFAX.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoFAX.json
similarity index 100%
rename from openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoFAX.json
rename to openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoFAX.json
diff --git a/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoRTC.json b/openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoRTC.json
similarity index 100%
rename from openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationDtoRTC.json
rename to openapi-contracts/src/test/resources/domains/numbers/v1/active/VoiceConfigurationResponseDtoRTC.json