> > >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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