> > >Two asterisk boxes 150 miles apart, both cvs-head as of this morning
> > >(and since Sept 27th), connected via iax2 with low-utilized ds3 internet,
> > >C7960 calls exten on remote system (also C7960), and call goes to VM.
> > >No other calls in either system (eg, no load).
> > >
> > >Both boxes have iax config'ed as:
> > > trunk=yes
> > > allow=ilbc
> > > jitterbuffer=yes
> > >Recorded VM messages are very distorted.
> > >
> > >Changing only jitterbuffer=no (and * restart), recorded VM messages are
> > >very clean. With jitterbuffer=yes and trunk=no, messages are very clean.
> > >
> > >Both boxes config'ed as:
> > > trunk=yes
> > > allow=gsm
> > > jitterbuffer=yes
> > >Recorded VM messages are very clean.
> > >
> > >Conclusion: looks like the combination of trunk=yes and jitterbuffer=yes
> > >with ilbc is causing the distorted VM messages. Normal answered calls
> > >have no distortion.
> > >
> > >Is this an unacceptable iax config or does this represent a bug?
> > >(Problem can be recreated at will and is very consistent.)
> > >
> >
> > 
> > Try using trunktimestamps as well..
> 
> That didn't help at all; exactly same distorted vm audio.
> 
> An example from the iax.conf looks like this:
> [npi-out]
> type=peer
> username=coz-in                                                               
> secret=mysecret                                                        
> auth=plaintext                                              
> host=1.2.3.4
> trunk=yes
> trunktimestamps=yes
> jitterbuffer=yes
> disallow=all
> allow=ilbc
> 
> Note: using type=user and type=peer on both cvs-head systems. Normal
> calls sound fine, but recorded vm messages are distorted.
 
Bug #5420 opened for this issue.


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