Hello, I've got a problem with connection to my SIP provider. In general, everything works, but I get lots of these messages: Oct 17 19:10:06 DEBUG[29707]: chan_sip.c:11148 handle_request: That's odd... Got a response on a call we dont know about. Cseq 42710 Cmd SIP/2.0 Oct 17 19:10:06 DEBUG[29707]: chan_sip.c:11148 handle_request: That's odd... Got a response on a call we dont know about. Cseq 42686 Cmd SIP/2.0 Oct 17 19:10:06 DEBUG[29707]: chan_sip.c:11148 handle_request: That's odd... Got a response on a call we dont know about. Cseq 42686 Cmd SIP/2.0 That itself would not be a problem, but my provider is complaining about lots of faulty registrations. I ran ngrep on that traffic. This is ngrep output after fresh start of asterisk: U 200.100.100.123:5060 -> 195.195.12.223:5060 REGISTER sip:sip1.provider.com SIP/2.0..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK6cb7aba7;rport..From: <sip:4221917293125@sip1.gtsne xtra.sk>;tag=as04cc5746..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@200.100.100.123..CSeq: 102 REGIST ER..User-Agent: Asterisk PBX..Max-Forwards: 70..Expires: 1200..Contact: <sip:4221917293125@200.100.100.123>..Event: registration..Content-Lengt h: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 100 Trying..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK6cb7aba7;received=200.100.100.123;rport=5060..From: <sip:4221917293125@sip 1.provider.sk>;tag=as04cc5746..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@200.100.100.123..CSeq: 102 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY..Contact: <sip:4212326 60145@195.195.12.223>..Content-Length: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK6cb7aba7;received=200.100.100.123;rport=5060..From: <sip:4212326601 45@sip1.provider.com>;tag=as04cc5746..To: <sip:4221917293125@sip1.provider.com>;tag=as17802cd7..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@21 7.67.16.43..CSeq: 102 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY.. Contact: <sip:4221917293125@195.195.12.223>..WWW-Authenticate: Digest realm="provider", nonce="70495064"..Content-Length: 0.... U 200.100.100.123:5060 -> 195.195.12.223:5060 REGISTER sip:sip1.provider.com SIP/2.0..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK1362d770;rport..From: <sip:4221917293125@sip1.gtsne xtra.sk>;tag=as51ddb092..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@200.100.100.123..CSeq: 103 REGIST ER..User-Agent: Asterisk PBX..Max-Forwards: 70..Authorization: Digest username="4221917293125", realm="provider", algorithm=MD5, uri="sip:s ip1.provider.sk", nonce="70495064", response="1c6b0193890a8e1c9c6b3a9287d1d30b", opaque=""..Expires: 1200..Contact: <sip:4221917293125@217. 67.16.43>..Event: registration..Content-Length: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 100 Trying..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK1362d770;received=200.100.100.123;rport=5060..From: <sip:4221917293125@sip 1.provider.sk>;tag=as51ddb092..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@200.100.100.123..CSeq: 103 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY..Contact: <sip:4212326 60145@195.195.12.223>..Content-Length: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 200 OK..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK1362d770;received=200.100.100.123;rport=5060..From: <sip:4221917293125@sip1.gt sprovider.sk>;tag=as51ddb092..To: <sip:4221917293125@sip1.provider.com>;tag=as17802cd7..Call-ID: 0c74fd93144a92174f3a032d4aeca8dc@200.100.100.123 ..CSeq: 103 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY..Expires: 1 200..Contact: <sip:4221917293125@200.100.100.123>;expires=1200..Date: Tue, 17 Oct 2006 16:38:19 GMT..Content-Length: 0.... (******) U 200.100.100.123:5060 -> 195.195.12.223:5060 REGISTER sip:my-provider-link SIP/2.0..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK102b43da;rport..From: <sip:4221917293125@sip1.gt sprovider.sk>;tag=as6550d352..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 19c054184a0c40ed4a8f5f194d19fe5a@200.100.100.123..CSeq: 42620 R EGISTER..User-Agent: Asterisk PBX..Max-Forwards: 70..Authorization: Digest username="4221917293125", realm="provider", algorithm=MD5, uri=" sip:my-provider-link", nonce="58c9238d", response="9d6439e3894f6a7e70fd09d683df073e", opaque=""..Expires: 120..Contact: <sip:4212326601 45@200.100.100.123>..Event: registration..Content-Length: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 100 Trying..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK102b43da;received=200.100.100.123;rport=5060..From: <sip:4221917293125@sip 1.provider.sk>;tag=as6550d352..To: <sip:4221917293125@sip1.provider.com>..Call-ID: 19c054184a0c40ed4a8f5f194d19fe5a@200.100.100.123..CSeq: 426 20 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY..Contact: <sip:42123 2660145@195.195.12.223>..Content-Length: 0.... U 195.195.12.223:5060 -> 200.100.100.123:5060 SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP 200.100.100.123:5060;branch=z9hG4bK102b43da;received=200.100.100.123;rport=5060..From: <sip:4212326601 45@sip1.provider.com>;tag=as6550d352..To: <sip:4221917293125@sip1.provider.com>;tag=as12748c70..Call-ID: 19c054184a0c40ed4a8f5f194d19fe5a@21 7.67.16.43..CSeq: 42620 REGISTER..User-Agent: SoftSwitch v1.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY ..Contact: <sip:4221917293125@195.195.12.223>..WWW-Authenticate: Digest realm="provider", nonce="311081ba"..Content-Length: 0.... Until (******) it seems like a standard registration. Everything after that is repeated several times a second. I don't know why it tries to register, when it has clearly already done so. Even sip show registry shows that provider as registered. Please note the difference in URI, first time it's sip1.provider.com, second time it's sip:my-provider-link. This is my sip.conf (relevant parts of it): register => 4221917293125:secret123@sip1.provider.com/4221917293125 [my-provider-link] type=friend username=4221917293125 secret=secret123 host=sip1.provider.com nat=no context=provider-in canreinvite=no insecure=very qualify=no It seems to me, that it tries to register also this my-provider-link somehow, but I have no idea how and why. Just for the record, I have several accounts of this SIP provider in my sip.conf (about 10). All other providers are working correctly, this one (except for these excessive registrations) is working too (all of the accounts). I've been told by my voice provider, that they are also using Asterisk on their side. I've tried upgrading from Asterisk 1.2.10 to Asterisk 1.2.12.1 and it did not help. Any ideas or help would be greatly appreciated. Juraj Bednar.