[Asterisk-Dev] More IAX tests with different codecs

[TC]

>> 3) IAX2 with GSM
>>    2-3 second drops often, mild artifacts
>I also experience these audio dropouts on the audio coming back to me.
>The callee disappears and reappears shortly after.
>
>My tests have been
>
>  ATA186-> SIP/g711-> * -> IAX2/G711 -> Nufone -> PSTN -> Dest
>
>How can I help get this fixed?  What trace, debugging can I
>provide?
Using IAX2 with nufone I was getting these drop outs
but using lastest cvs & explicitly setting jitterbuffer in iax.conf to a 
value of 1 or 2 or 3 has cleared this up for