Rayo client expectations on an unexpected Rayo server disconnection event

[emcgee]

Based on a conversation with @benlangfeld @bklang @crienzo at AhnConf:

If a Rayo server silently dies, Adhearsion will currently continue to run a controller as normal while it attempts to reconnect.

While this may be a desired state in some use cases, it can be problematic when using Adhearsion for state, CDRs, etc...

An alternate routine would be for the corresponding calls associated with that client-server connection to immediately terminate upon loss of connection.

This could be done in a number of ways, but @benlangfeld suggested that the Rayo client might couch this connection loss as a hangup event so all the appropriate post-call routines will run appropriately with no need for additional application logic.

Making the hangup scenario the default for Rayo/Punchblock or a configurable option was also briefly mentioned.