[asterisk-users] 1.6b9 Audio Issue

Mark Michelson
Fri, 18 Jul 2008 19:45:15 -0000

MFH wrote:
> I'm noticing in 1.6 Beta 9 that on outgoing calls I get a brief audio
> drop when the audio starts on the other end of the call.  So basically I
> hear the first word, miss the second word and then hear the rest fine.
> I've noticed this after calling multiple locations and getting some
> recording on the other end. The origin of the outbound channel is always
> SIP but the asterisk to PSTN could be SIP or IAX. Anyone else?
>
> MARK.
>

One difference between Asterisk 1.6.0 and previous versions is that when a
channel answers, there is a built-in 500 ms delay so that media has time to be
set up. This may be what you are experiencing.

There was a bug reported recently that was traced back to this delay. In the
next 1.6.0 tarball, the delay will behave slightly differently, although I doubt
it will be noticeable for the situation you have described. The bug I refer to
is: http://bugs.digium.com/view.php?id=12924

Mark Michelson