ISDN & SIP sound problem

[system]

Hello,

I try to setup an asterisk 1.6.2 on debian squeeze (using debian’s package) with a B410 BRI card and some SIP account.

All work fine for local call using SIP accounts with ST2030 phones (good voice quality & co), so, while i try to make an outbound call (or receive call) using the B410 (with Dahdi), people can heard me so i can’t heard them, i receive no sound.

I found on some forum that the “group” settings on chan_dahdi.cond and dahdi_channels.conf can cause this problem, so, using the same group on all span don’t resolve my problem.

This is my /etc/dahdi/system.conf: pastebin.ca/2101938
This is my /etc/asterisk/chan_dahdi.conf: pastebin.ca/2101939
This is my /etc/asterisk/dahdi-channels.conf: pastebin.ca/2101940

This is the cli:

-- Executing [0643******@poirot-construction:1] Dial("SIP/314-00000003", "DAHDI/g1/0643******/tfTtKk") in new stack
-- Requested transfer capability: 0x00 - SPEECH
-- Called g1/0643******/tfTtKk

== Primary D-Channel on span 2 up
– DAHDI/4-1 is proceeding passing it to SIP/314-00000003
– DAHDI/4-1 is ringing
– DAHDI/4-1 answered SIP/314-00000003
– Hungup ‘DAHDI/4-1’
== Spawn extension (poirot-construction, 0643******, 1) exited non-zero on ‘SIP/314-00000003’

Do you have an idea about what can cause this problem?

Kev