On Jan 22, 2005, at 10:49 PM, Michael Graves wrote:
I notice that all four of my IAX2 based termination providers send incomming calls in trunking mode. You can tells since the command IAX2 Show Registry reports all the connections to port 8617. This is something that is determined at their end. In trunk mode I beleive that the jitter buffer is not effective.
IIRC the jitter buffer is currently broken in trunk mode and should be turned off.
http://www.voip-info.org/wiki-Asterisk+bandwidth+iax2
An alternative for testing is to set trunk=no in iax.conf. I've had to do that for my VPC trunks because I've also found that outbound faxing seems to be broken with trunking turned on (at least to VPC).
FWIW, I had similar problems with VPC so I switched to Sixtel.net. No such problems anymore.
VPC must still be using quite a lot of custom code or routing their calls in some weird way because I've found two problems with them so far while using IAX2:
1) The fax problem mentioned above.
2) Inbound DTMF is quite broken. (They are working on a fix and said it would be at least 30 days...but then in December they said it would take 2 weeks...). What a drag.
-mark
-- Mark Eissler, [EMAIL PROTECTED] Mixtur Interactive, Inc. [EMAIL PROTECTED] http://www.mixtur.com
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