Hi,
I am using two Cisco devices (C3845 with Version 15.1(2)T2 and C3945E with Version 15.2(4)M6) to handle SIP calls.
Calls work fine, but I have a problem when call termination side hangs up a call, my Cisco is modifying Route Header with improper data and sends wrong IP to SIP Proxy. Also this is not happening every time, once Route header is properly modified by Cisco, and second time cisco sends wrong Route header (with wrong IP)...
This happens only with one call terminator, with others there is no such problem.
To Summarize, when BYE is coming to Cisco, once Cisco sends BYE with Route Header with own IP (instead of SIP Proxy IP) which is wrong because SIP Proxy sends back such BYE to Cisco and Cisco disconnect it with 481 Call Leg/Transaction Does Not Exist, and second time sends BYE with Route Header with correct SIP Proxy IP. There is no difference between once BYE and second BYE which are coming from call terminator.
On cisco I've enabled debugs:
debug ccsip all
debug voip ccapi all
For improper call in logs I see some errors, but don't no why there are these errors:
Sep 23 23:17:18 10.10.10.10 298972: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: From header is restricted
Sep 23 23:17:18 10.10.10.10 298973: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header From to container
Sep 23 23:17:18 10.10.10.10 298974: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: Content-Length header is restricted
Sep 23 23:17:18 10.10.10.10 298975: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header Content-Length to container
Sep 23 23:17:18 10.10.10.10 298976: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: To header is restricted
Sep 23 23:17:18 10.10.10.10 298977: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header To to container
Sep 23 23:17:18 10.10.10.10 298978: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: Call-Id header is restricted
Sep 23 23:17:18 10.10.10.10 298979: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header Call-ID to container
Sep 23 23:17:18 10.10.10.10 298980: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: Via header is restricted
Sep 23 23:17:18 10.10.10.10 298981: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header Via to container
Sep 23 23:17:18 10.10.10.10 298982: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtVerifyIfRestricted: Cseq header is restricted
Sep 23 23:17:18 10.10.10.10 298983: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Error/add_err_resp_hdrs_from_inbound_leg: Error adding header CSeq to container
Sep 23 23:17:18 10.10.10.10 298984: Sep 23 21:17:18: //-1/xxxxxxxxxxxx/SIP/Info/sipGenDestroyContainerContext: Destroying SIP Container=0xC3A72CB4
Please see attachments for correct and incorrect behavior of Cisco. As you can see there is no difference in BYE for correct and incorrect behavior of Cisco.
Please help.
