We have resolved the small issue on SisinIM/BeagleIM end and VoIP audio calls start to work from SiskinIM/BeagleIM to Conversations, however they do not work in oposite direction as Conversations uses <message/> based initiation which is not supported by Siskin or Beagle.

@kobit Should we add support for <message/> based initiation? I know that we wanted to have call notifications on iOS even when the applications is suspended in the background. Currently, Conversations is still checking if any client supports Jingle and only then displays buttons to call, but still, only with message initiation we can think of adding a way to accept a call on iOS without an app in the foreground.