diff --git a/lib/helpers.js b/lib/helpers.js
index 77f4966..158b389 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -5,7 +5,7 @@
  * @requires 'xml2js
  */
 
-const debug = require('debug')('sonos')
+const debug = require('debug')('sonos:helpers')
 const parseString = require('xml2js').parseString
 
 /**
diff --git a/lib/services/Service.js b/lib/services/Service.js
index 4f9f70c..2f1e2d7 100644
--- a/lib/services/Service.js
+++ b/lib/services/Service.js
@@ -10,7 +10,7 @@
 
 const request = require('request-promise-native')
 const parseString = require('xml2js').parseString
-const debug = require('debug')('sonos-service')
+const debug = require('debug')('sonos:service')
 const Helpers = require('../helpers')
 
 /**
diff --git a/lib/sonos.js b/lib/sonos.js
index f8ec2e9..44f2bbf 100644
--- a/lib/sonos.js
+++ b/lib/sonos.js
@@ -17,7 +17,7 @@ const DEVICE_ENDPOINT = '/DeviceProperties/Control'
 const util = require('util')
 const EventEmitter = require('events').EventEmitter
 const request = require('request-promise-native')
-const debug = require('debug')('sonos')
+const debug = require('debug')('sonos:main')
 const Listener = require('./events/adv-listener')
 const Helpers = require('./helpers')
 
@@ -162,6 +162,7 @@ Sonos.prototype.currentTrack = async function () {
  */
 Sonos.prototype.getVolume = async function () {
   debug('Sonos.getVolume()')
+  if (this._isSubscribed && this._volume) return this._volume
   return this.renderingControlService().GetVolume()
 }
 
@@ -171,6 +172,7 @@ Sonos.prototype.getVolume = async function () {
  */
 Sonos.prototype.getMuted = async function () {
   debug('Sonos.getMuted()')
+  if (this._isSubscribed && this._mute) return this._mute
   return this.renderingControlService().GetMute()
 }
 
@@ -558,6 +560,7 @@ Sonos.prototype.getTopology = async function () {
  */
 Sonos.prototype.getCurrentState = function () {
   debug('Sonos.currentState()')
+  if (this._isSubscribed && this._state) return this._state
   return this.avTransportService().GetTransportInfo()
     .then(result => {
       return Helpers.TranslateState(result.CurrentTransportState)
@@ -641,7 +644,9 @@ Sonos.prototype.playNotification = async function (options) {
   return new Promise(async (resolve, reject) => {
     debug('sonos.playNotification(%j)', options)
     const state = await this.getCurrentState()
+    debug('Current state %j', state)
     const wasPlaying = (state === 'playing' || state === 'transitioning')
+    debug('Was playing %j', wasPlaying)
     const wasListening = Listener.isListening()
     let volume = 0
     if (typeof options === 'object') {