Answers marked with ####Missing audio files. IOS VB returned error.badfetch.http.404. VVB (pre patch ES81) returned error.badfetch.http. With ES81 returns no notification at all.####  ES81 error not throw is as per compliance.    In VVB ES81 we follo...

This always worked since 11.5 and nothing to do with ES81. But I believe alternative text for a prompt had an issue in ES80.Example:"com.cisco.tts-server" can be set to sip:tts@hostnameContinuing with the above example:1. Add TTS server (use hostname...

Use ES53 which was released this week. That has another fix for multi-lang where MRCP Msg length was calculated incorrectly. 

Dilip,Not sure how IOS-VB will handle when one of the server is unreachable.  You can configure a wrong IP in one of the dial-peer and check how it behaves.I can comment on CVVB behavior in this scenario,Lets say you have these TTS servers configured...

Handoff error can be because of the maximum number of handoffs (i.e.100) is reached. 100 is hardcoded in IOS-GW code. You can still manage 90m>EWT>60m. We have recently tested for around 80m and we didn't see handoff failures. But If we go close to 9...