epid and +sip.instance header RRS feed

  • Question


    Hi all, I'm doing some test registering a sip terminal to OCS 2007 server. I'm using both epid and +sip.instance header as indicated in [MS-SIPRE] (Session Initiation Protocol (SIP) Routing Extensions).

    The server answeer is always "SIP/2.0 400 Mismatched epid and +sip.instance header parameter values".

    I followed the [MS-SIPRE]  3.2 chapter using the UUID "fcacfb03-8a73-46ef-91b1-e5ebeeaba4fe" as namespace ID.

    Then I executed UUID utility from a linux system:


    UUID -v5  fcacfb03-8a73-46ef-91b1-e5ebeeaba4fe  1122334455


    obtaining  the UUID af0938d4-d82e-5130-aece-9a97f909fe61.


    Using af0938d4-d82e-5130-aece-9a97f909fe61 as sip.instance  and 1122334455 I obtain the Mismatched epid and +sip.instance messagge. Instead using the values taken from a Office Communicator capture all work fine.

    What's the correct procedure to generate the UUID in a EPID namespace?


    Any help is appreciated.

    Thanks in advance.



    Monday, October 27, 2008 11:23 AM

All replies

  • Hi Frank

    I'm trying the same test. And Ii doesn't function.

    Did you resolve the problem ? I'm not sur that  fcacfb03-8a73-46ef-91b1-e5ebeeaba4fe is valid


    Wednesday, January 28, 2009 2:39 PM