[asterisk-users] Calls hang up after 20 seconds

[Gianni Fioretta]

Hello.

I have a problem with Asterisk, sometimes it hangs up an external call after 20 seconds, apparently without any reason.
The call comes from a SIP server hosted from EuteliaVoIP, many peers rangs and one of them answer, the call ends itself after 20 seconds from the answer.
I've tried many configuration in sip.conf, but no one solved the problem.

Log from /var/log/asterisk/messages:
[Oct  8 15:49:05] WARNING[10659] chan_sip.c: Hanging up call E3F0204B-B35811DE-BBA58889-6D53C3C3 at 83.211.2.220 - no reply to our critical packet.

and from CLI:
[Oct  8 15:52:26] WARNING[10659]: chan_sip.c:1950 retrans_pkt: Maximum retries exceeded on transmission 59E62874-B35911DE-9A598915-C5A6B3AA at 195.62.226.16 for seqno 101 (Critical Response)
[Oct  8 15:52:26] WARNING[10659]: chan_sip.c:1972 retrans_pkt: Hanging up call 59E62874-B35911DE-9A598915-C5A6B3AA at 195.62.226.16 - no reply to our critical packet.
  == Spawn extension (incoming, 03411885583, 4) exited non-zero on 'SIP/03411885583-081e0d78'

(peer 101 was not connected at this time, but Asterisk also hags up with all the peers connected)

Any idea?

Thanks in advance.

-- 
Gianni Fioretta - gianni.fioretta at yetopen.it

YetOpen S.r.l. - http://www.yetopen.it/
Via Previati 72 - 23900 Lecco - ITALY -
Tel 0341 220 205 - Fax 178 607 8199

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Grazie.