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List:       sip-implementors
Subject:    Re: [Sip-implementors] Question on SIP REGISTER message
From:       Tadkod.Vyanktesh () alcatel ! com
Date:       2006-01-30 12:32:39
Message-ID: 43DE0497.4030400 () alcatel ! com
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Hello Ashish,
you may be correct here .This could be a application issue..There are 
few softswitch/MGC(third party for us) which will forward the INVITE 
message to endpoint ( in this case IVR application) only if there are 
registered .Now the problem is, how to register only the domain/host 
part using SIP REGISTER message with these softswitch/MG's so that with 
different username part information in INVITE message, it still gets 
forwarded to the same endpoint?
I am also thinking in similar lines of (VOIP-H323) based IVR 
application. In case of Gatekeeper(GNU GK), the IVR application send the 
registration request(RRQ) with alias address/pattern and the host 
details.At Gatekeeper level, it is possible to have a mapping of alias 
address to list of usenames . This can be configured statically with GNU GK.
During a call , the Gatekeeper will look for the username in the "setup" 
message and check if it is configured in the alias address list. If yes, 
then it forward the setup request to the registered host (RRQ) against 
that alias address.
Is there a way to do similar thing with SIP entities?

Thanks and regards
-venkat


Ashish Kumar wrote:

>Hey Venkat,
>
>This looks more like an application problem, rather than SIP protocol
>problem. Is it possible for the application that is reading the bindings
>from the registration database to play IVR based on the domain/host
>instead of username?
>
>Ashish
>
>-----Original Message-----
>From: sip-implementors-bounces@cs.columbia.edu
>[mailto:sip-implementors-bounces@cs.columbia.edu] On Behalf Of
>Tadkod.Vyanktesh@alcatel.com
>Sent: Monday, January 30, 2006 11:09 AM
>To: sip-implementors@cs.columbia.edu
>Subject: [Sip-implementors] Question on SIP REGISTER message
>
>Hi All,
>Need your help,for better solution on SIP REGISTER implementation in our
>
>product.
>In the  SIP REGISTER message the TO header field contains the 
>AOR(<username>@domain) whose registration is to be created  and the 
>contact header field contains the address bindings( one or more).
>We have an IVR product (VOIP-SIP) which interprets <username> part of 
>INVITE message "TO" field as an unique IVR application (stratergy).i.e 
>one of our IVR component (endpoint) can cater for multiple such 
>username.E.g 1111, 2222, 3333 .....
>
>Problem Description:
>Looking at the SIP REGISTER message, it looks like , we need to send one
>
>REGISTER request per username for address binding .The thing is, the 
>endpoint for each of the these username it the same component.This 
>component internal manages to differentiate each username as an 
>different IVR application to be invoked and played to the caller.
>These username are created and dynamically added in our product and 
>secondly an enterprise or network customer/reseller may have large 
>number of such username created .This means that we need to send  SIP 
>REGISTER message for each username created for address bindings.This 
>will be big task and may be not acceptable solution for our customer. Is
>
>there any way we can REGISTER only the domain or host part  with the 
>Registrar so that any request having different username but the same 
>domain or host name are forwarded to that host/domain endpoint?
>
>Regards
>-venkat
>
>
>
>
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>


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