7961 регистрация

проблема такая. есть 7961. он за натом и пытается регистрироваться на астериске. результат вот такой

<--- SIP read from UDP:91.200.1.98:49154 ---> REGISTER sip:78.46.118.22 SIP/2.0 Via: SIP/2.0/UDP 192.168.23.120:5060;branch=z9hG4bK16181274 From: <sip:17@78.46.118.22>;tag=0026cb3da21000087c9c3d6b-e8f74d96 To: <sip:17@78.46.118.22> Call-ID: 0026cb3d-a2100002-9f7baa63-f2bee024@192.168.23.120 Max-Forwards: 70 Date: Mon, 08 May 2006 GMT CSeq: 104 REGISTER User-Agent: Cisco-CP7961G/8.0 Contact: <sip:17@192.168.23.120:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0026cb3da210>";+u.sip!model.ccm.cisco.com="30018" Content-Length: 0 Expires: 3600 <-------------> [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 0 [ 33]: REGISTER sip:78.46.118.22 SIP/2.0 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 1 [ 59]: Via: SIP/2.0/UDP 192.168.23.120:5060;branch=z9hG4bK16181274 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 2 [ 65]: From: <sip:17@78.46.118.22>;tag=0026cb3da21000087c9c3d6b-e8f74d96 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 3 [ 25]: To: <sip:17@78.46.118.22> [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 4 [ 59]: Call-ID: 0026cb3d-a2100002-9f7baa63-f2bee024@192.168.23.120 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 5 [ 16]: Max-Forwards: 70 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 6 [ 26]: Date: Mon, 08 May 2006 GMT [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 7 [ 18]: CSeq: 104 REGISTER [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 8 [ 29]: User-Agent: Cisco-CP7961G/8.0 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 9 [150]: Contact: <sip:17@192.168.23.120:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-0026cb3da210>";+u.sip!model.ccm.cisco.com="30018" [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 10 [ 17]: Content-Length: 0 [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:8496 parse_request: Header 11 [ 13]: Expires: 3600 --- (12 headers 0 lines) --- [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:25069 handle_incoming: **** Received REGISTER (2) - Command in SIP REGISTER [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:25094 handle_incoming: Ignoring SIP message because of retransmit (REGISTER Seqno 104, ours 104) [Apr 25 05:19:33] DEBUG[1454]: chan_sip.c:24898 handle_request_register: Initializing initreq for method REGISTER - callid 0026cb3d-a2100002-9f7baa63-f2bee024@192.168.23.120 Sending to 91.200.1.98:5060 (no NAT) <--- Transmitting (no NAT) to 91.200.1.98:5060 ---> SIP/2.0 401 Unauthorized 

тоесть выдает тот же seqno. как это побороть? учитывая что прошивка вроде невлияет. ну или непонятно где ее новее взять. пробывал на

-rw-r--r-- 1 root root 3975754 Апр 24 15:16 cmterm-7941_7961-sip.8-0-3.cop.gz -rw-r--r-- 1 root root 4108956 Апр 24 15:03 cmterm-7941_7961-sip.8-2-2SR4.zip -rw-r--r-- 1 root root 4463173 Апр 24 14:10 cmterm-7941_7961-sip.8-3-1.zip -rw-r--r-- 1 root root 5544946 Апр 24 16:38 cmterm-7970_7971-sip.8-5-3.zip