Hello list,

I am confronted with the following problem :

making a call only leasts for about 30 seconds, then the call is ended. The CLI shows :

[May 21 14:31:50] WARNING[25345]: chan_sip.c:1980 retrans_pkt: Maximum retries exceeded on transmission 954539948-506...@192.168.1.100 for seqno 11 (Critical Response) -- See doc/sip-retransmit.txt. [May 21 14:31:50] WARNING[25345]: chan_sip.c:2002 retrans_pkt: Hanging up call 954539948-506...@192.168.1.100 - no reply to our critical packet (see doc/sip-retransmit.txt).

I read about SIP-packets being retransmitted but in the end not being acknowledged and so Asterisk ends the call.


The network is like this :

analogue phone -- Grandstream GXW4008 -- Linksys WAG160 -- Asterisk server -- ITSP


Is this a NAT-problem in the router ?? Can it be resolved ?


Kind regards,

Jonas
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