[Freeswitch-users] Gaps In RTP (wideband) Packets From mod_voicemail

[Jerry Richards]

Hello,


I'm seeing a audio problem when listening to the operator when calling into voicemail to listen to messages and a wideband codec is used.  Looking at a wireshark trace, I see gaps between transmitted RTP packets that exceed the jitter buffer depth in the endpoint softphone, causing underflow.   This causes clipping of the front-end of words such as "Pressed" sounds like 'ess' and "Last name" sounds like 'ast name'.  While this is generally not noticeable with the G.711 codec, it causes these clipped audio phrases with wideband codecs, such as BV32.  It might be due to the processing delay in mod_voicemail between phrases?



Has anyone seen this?  Is there a tag to help improve this?



Thanks,

Jerry

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