[Asterisk-Users] Maximum retries exceeded on call

[Eric C. Snowdeal III]

Eric C. Snowdeal III wrote: 

> after registering the phones correctly and receiving a "200 o.k." 
> message i can connect to other registered softphones and pstn 
> endpoints [ via an voicepulse account ],  but after making the initial 
> connection, i can't hear any sound and i get disconnected after 
> getting the following error message:
>
> chan_sip.c:497 retrans_pkt: Maximum retries exceeded on call 
> 0F2F6379-C0BD-11D8-BF01-000D93C22AF4 at 192.168.1.100 for seqno 41270 


prompted by a recent email to the group [1] about setting the bindaddr, 
i took a closer look at the sip messages being sent back and forth and 
noticed that the contact header was incorrectly set to 127.0.0.1 in the 
200 o.k. message [2].  once i set the bindaddr to the * machine's public 
ip address everything worked fine and and contact header i.p.  address 
was set correctly.

what's odd, at least to me, is that unlike the recent email about a 
similar issue [1], my * box is on a non-natted, public ip address so i 
would have thought that keeping the default bindaddr  (0.0.0.0) would 
have worked, but obviously it didn't.

not sure how to interpret the dirth of responses, perhaps this was 
frighteningly obvious to everyone else.

[1] http://lists.digium.com/pipermail/asterisk-users/2004-June/051375.html
[2]
RECEIVE TIME: 7548279
RECEIVE << my.public.asterisk.ip:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
my.wan.ip:5060;rport;branch=z9hG4bKFE76D502C2BF11D8A741000D93C22AF4;received=my.wan.ip;rport=1029
From: snowdeal <sip:2000 at my.public.asterisk.fqdn>;tag=1666554831
To: snowdeal <sip:2000 at my.public.asterisk.fqdm>;tag=as7f7ed33f
Call-ID: FE45E835C2BF11D8A741000D93C22AF4 at my.public.asterisk.fqdm
CSeq: 43970 REGISTER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Expires: 1800
Contact: <sip:2000 at 127.0.0.1>;expires=1800
Date: Sun, 20 Jun 2004 13:44:34 GMT
Content-Length: 0