SIP SUBSCRIBE/NOTIFY on Cisco AS5350

Discussion in 'VOIP' started by Mike Bromwich, Oct 20, 2003.

  1. Hi

    I'm having trouble getting the SIP SUBSCRIBE method to work with a
    Cisco AS5350 Router. When I submit the SUBSCRIBE request, I get the
    following output in the debugging (with 'debug ccsip all'). Any ideas?
    (I have replaced telephone numbers by ? for privacy).

    02:00:15: Received:
    SUBSCRIBE sip:90101144??????????@192.168.129.101:5060 SIP/2.0
    Contact: sip:823833@192.168.129.11:5060
    Content-Length: 0
    Via: SIP/2.0/TCP 192.168.129.11:5060
    Event: telephone-event
    Expires: 3600
    To: 90101144??????????<sip:90101144??????????@192.168.129.101:5060>;tag=6DF8B0-C09
    Max-Forwards: 10
    Call-ID: 5e3f9667-cdcb-4463-9459-7e561192f3e6#0
    From: CallKey<sip:??????@192.168.129.11:5060>;tag=dffc
    Allow-Events: telephone-event
    CSeq: 2 SUBSCRIBE



    02:00:15: *****CCB found in UAS Response table. ccb=0x63F4E018
    02:00:15: CCSIP-SPI-CONTROL: act_active_new_message
    02:00:15: CCSIP-SPI-CONTROL: sact_active_new_message_request
    02:00:15: sip_stats_method
    02:00:15: CCSIP-SPI-CONTROL: sact_active_new_message_request:
    Ignoring request(SUBSCRIBE)
     
    Mike Bromwich, Oct 20, 2003
    #1
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  2. Hi Mike,
    Kinda off topic, but how did you get your AS5300 to attempt to
    register to a SIP proxy server? I'm having this problem, I can't figure
    what command does this. I have a Cisco AS5300 with a quad T1 facing a telco
    switch.

    --

    Matteo D'Amato
    Intelco Communication


    (Mike Bromwich) wrote in
    news::

    > Hi
    >
    > I'm having trouble getting the SIP SUBSCRIBE method to work with a
    > Cisco AS5350 Router. When I submit the SUBSCRIBE request, I get the
    > following output in the debugging (with 'debug ccsip all'). Any ideas?
    > (I have replaced telephone numbers by ? for privacy).
    >
    > 02:00:15: Received:
    > SUBSCRIBE sip:90101144??????????@192.168.129.101:5060 SIP/2.0
    > Contact: sip:823833@192.168.129.11:5060
    > Content-Length: 0
    > Via: SIP/2.0/TCP 192.168.129.11:5060
    > Event: telephone-event
    > Expires: 3600
    > To:
    > 90101144??????????<sip:90101144??????????@192.168.129.101:5060>;tag=6DF
    > 8B0-C09 Max-Forwards: 10
    > Call-ID: 5e3f9667-cdcb-4463-9459-7e561192f3e6#0
    > From: CallKey<sip:??????@192.168.129.11:5060>;tag=dffc
    > Allow-Events: telephone-event
    > CSeq: 2 SUBSCRIBE
    >
    >
    >
    > 02:00:15: *****CCB found in UAS Response table. ccb=0x63F4E018
    > 02:00:15: CCSIP-SPI-CONTROL: act_active_new_message
    > 02:00:15: CCSIP-SPI-CONTROL: sact_active_new_message_request
    > 02:00:15: sip_stats_method
    > 02:00:15: CCSIP-SPI-CONTROL: sact_active_new_message_request:
    > Ignoring request(SUBSCRIBE)
    >
     
    Matteo D'Amato, Oct 25, 2003
    #2
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  3. In case anyone else has this problem, the solution was to remove the
    tag from the To header.

    Mike

    Response from Cisco is as follows:

    You are actually running into CSCdz04784 'SIP: Subscribe with to-tag
    within a dialog should be allowed'. The workaround for this problem
    is: Sending SUBSCRIBE without to-tag.

    The reason for this that we have implemented
    'draft-ietf-sip-events-00.txt' which explicitly stated that initial
    subscribe requests MUST NOT contain a to-tag. In the latest version of
    the draft namely, rfc3265, they further clarify the statement to,
    "initial SUBSCRIBE represents a request outside of a dialog (as it
    typically will), its construction follows the procedures outlined in
    SIP [1] for UAC request generation outside of a dialog." as opposed to
    what was in draft-ietf-sip-events-00.txt. Subscribe request within
    the dialog of a all must now adhere to the requirements set in rfc3261
    for "12.2 Requests within a Dialog", which requires them to have a
    to-tag.
     
    Mike Bromwich, Nov 3, 2003
    #3
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