[SIPForum-discussion] Unknown User

nithya kumar nithyakr at huawei.com
Wed Jul 18 04:43:28 UTC 2007

Hi Balaji,


       It is based on the Switch used.If terminating switch is capable of
playing ann ..it can play the ann.!! 


If not  as per Halit told it will report to IN platform which will inturn
use media server to play the annc








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From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Halit Sakca
Sent: Saturday, July 14, 2007 7:06 PM
To: gurudatt balaji; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] Unknown User


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 +0530
From: gurudattbalaji at gmail.com
To: discussion at sipforum.org
Subject: [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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