[SIPForum-discussion] Unknown User

Halit Sakca sakcahalit at hotmail.com
Sat Jul 14 13:35:54 UTC 2007

Hi Balaji,
In your scenario, PSTN IN platform will have to play the announcement.
As fas as I know;
IMS -404->PSTN with Release Cause---------------------->IN platform
PSTN<-media server<-play order with announcement_id<----IN platform                                              
hope its hepful,

Date: Wed, 11 Jul 2007 19:28:49 +0530From: gurudattbalaji at gmail.comTo: discussion at sipforum.orgSubject: [SIPForum-discussion] Unknown User
Hi All,
I've one query....
When PSTN user makes a call to IMS (unknown user), who is going to play the announcement (saying wrong number/user) is it terminating switch (IMS) or originating switch (PSTN switch)?
If it's PSTN, IMS will respond with 404-NON_FOUND and based on the response PSTN will play with announcement
If it's IMS, how and what would be the logic?
Thanks in advance
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