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Re: draft-ietf-mmusic-sip-multipart-00.txt

Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com> Wed, 09 June 1999 07:51 UTC

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Date: Wed, 09 Jun 1999 10:49:12 +0300
From: Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>
Organization: Oy L M Ericsson Ab
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To: Adam.Roach@ericsson.com
CC: confctrl@ISI.EDU, Ricky Project <Ricky@lmf.ericsson.se>
Subject: Re: draft-ietf-mmusic-sip-multipart-00.txt
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Hi Adam,

> I realise that, with the INFO extension, the subsequent messages
> could be sent following the INVITE/IAM message; however, this
> seems like an unnecessary amount of network overhead.

But if you haven't received yet all the B-number, how do you know where
to send the INVITE?

You could send it to a SIP proxy, but the proxy would have to wait for
the SAMs anyway to reach the proper user... and it would mean that the
SIP proxy understands ISUP (and we do not want this to happen, right? ).

You could also send it to a MGC that will end up in the PSTN network
again, but how do you know which MGC you have to send it to?

By the way, I am probably going to Dallas in a couple of weeks.
See you there,

Gonzalo
-- 
Gonzalo Camarillo         Phone :  +358  9 299 33 71
Oy L M Ericsson Ab        Mobile:  +358 40 702 35 35
Telecom R&D               Fax   :  +358  9 299 31 18
FIN-02420 Jorvas          Email :  Gonzalo.Camarillo@ericsson.com
Finland

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