[SIPForum-discussion] [SIPFORUM-Discussion]-IMS

[sunitha]

Hi All,

Can anyone guide me...

As v know in IMS the Server-call session control function(S-CSCF)access the database HSS using diameter protocol n dr r some mapping of messages from DIAMETER to SIP n vise versa...

Eg: C the attachment for call flow....in registration...

In some of the 3gpp documents dy tell the message formates of these correct diameter messages n other details of different headers ....

But i didnt find any document which exactly tells how this mapping of error messages takes place....

eg: suppose if HSS gives 5001 diameter error response to some sip message from S-CSCF how does S-CSCF map this error diameter message to sip error message...Is dr any document which gives these details..

Thanks,
A.M.Sunitha

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