[Asterisk-Users] Maximum retries exceeded on call

[Edmund A. Hintz]

Running * with default config files except for sip.conf. Any call made is
dropped 5 seconds after connection, with the following messages:

Mar 17 16:37:41 WARNING[1009461760]: chan_sip.c:495 retrans_pkt: Maximum
retries exceeded on call 6C94C1B1-77C4-11D8-91FB-
000A95DA04DA at 192.168.1.152 for seqno 48221 (Response)
  == Spawn extension (default, s, 5) exited non-zero on 'SIP/2000-6bd7'
Mar 17 16:37:47 WARNING[1009461760]: chan_sip.c:495 retrans_pkt: Maximum
retries exceeded on call 6C94C1B1-77C4-11D8-91FB-
000A95DA04DA at 192.168.1.152 for seqno 102 (Request)
Mar 17 16:43:43 WARNING[1009461760]: chan_sip.c:495 retrans_pkt: Maximum
retries exceeded on call 0162f8c72fdabef42b09d61d49db3092 at 66.92.222.38
for seqno 102 (Request)

Setup is OBSD 3.4, asterisk 0.7.2, X-Lite softphone, and Cisco ATA186. PF
is disabled entirely, and all nodes are behind the same NAT, on the same
LAN. I see all kinds of posts in the archives with this problem, but no
clear solution. Suggestions?

Regards,

Ed Hintz
ed at hintz.org