[Asterisk-Users] SIP rejecting calls?

[Huw Morgan]

Hi,

I have researched more into the problem of my Asterisk set-up not answering 
calls.

The following error was shown on the CLI, can anyone explain what the 
problem causing Asterisk to not answer the SIP calls be?

Information: I have an Asterisk box on a home LAN, behind a D-Link 
router/firewall connected to a cable modem. The 82.x.x.x is the IP for my 
cable modem. 192.168.0.101 is my router (internal IP).

Sip read:
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 
192.168.0.101:5060;branch=z9hG4bK19f25c03;rport=63817;received=82.x.x.x
From: <sip:1437594 at sipgate.co.uk>;tag=as4bc4badc
To: <sip:1437594 at sipgate.co.uk>;tag=019efdbfb68dd123f382ae5ce73ea92d.d391
Call-ID: 41b71efb79e2a9e37545e146515f007c at 127.0.0.1
CSeq: 110 REGISTER
WWW-Authenticate: Digest realm="sipgate.co.uk", 
nonce="42f4e13cd7f2b087ca91bbf35f3fb85814fc18e1", stale=true
Server: sipgate ser
Content-Length: 0
Warning: 392 217.10.79.219:5060 "Noisy feedback tells:  pid=22114 
req_src_ip=82.x.x.x req_src_port=63817 in_uri=sip:sipgate.co.uk 
out_uri=sip:sipgate.co.uk via_cnt==1"


10 headers, 0 lines
Responding to challenge, registration to domain/host name sipgate.co.uk
12 headers, 0 lines
Reliably Transmitting:
REGISTER sip:sipgate.co.uk SIP/2.0
Via: SIP/2.0/UDP 192.168.0.101:5060;branch=z9hG4bK57e059a0
From: <sip:1437594 at sipgate.co.uk>;tag=as4bc4badc
To: <sip:1437594 at sipgate.co.uk>;tag=019efdbfb68dd123f382ae5ce73ea92d.d391
Call-ID: 41b71efb79e2a9e37545e146515f007c at 127.0.0.1
CSeq: 111 REGISTER
User-Agent: Asterisk PBX
Authorization: Digest username="1437594", realm="sipgate.co.uk", 
algorithm=MD5, uri="sip:sipgate.co.uk", 
nonce="42f4e13cd7f2b087ca91bbf35f3fb85814fc18e1", 
response="f6ff76084e04d8d3e4ed5b21de42712a", opaque=""
Expires: 120
Contact: <sip:1437594 at 192.168.0.101>
Event: registration
Content-Length: 0

(no NAT) to 217.10.79.219:5060


Sip read:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 
192.168.0.101:5060;branch=z9hG4bK57e059a0;rport=63817;received=82.x.x.x
From: <sip:1437594 at sipgate.co.uk>;tag=as4bc4badc
To: <sip:1437594 at sipgate.co.uk>;tag=019efdbfb68dd123f382ae5ce73ea92d.d391
Call-ID: 41b71efb79e2a9e37545e146515f007c at 127.0.0.1
CSeq: 111 REGISTER
Contact: <sip:1437594 at 82.x.x.x:63817>;q=0.00;expires=120
Server: sipgate ser
Content-Length: 0
Warning: 392 217.10.79.219:5060 "Noisy feedback tells:  pid=22109 
req_src_ip=82.x.x.x req_src_port=63817 in_uri=sip:sipgate.co.uk 
out_uri=sip:sipgate.co.uk via_cnt==1"


10 headers, 0 lines
Aug  6 17:07:14 NOTICE[1493]: chan_sip.c:6814 handle_response: Outbound 
Registration: Expiry for sipgate.co.uk is 120 sec (Scheduling reregistration 
in 105000 ms)
Destroying call '41b71efb79e2a9e37545e146515f007c at 127.0.0.1'

>From what I'm guessing it is some kind of problem with my network, any ideas 
what is going on and how I could solve it?

Thanks.

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