Subject: [Sip] SIP servers interconnection

From: Wenbo Sheng <[email-masked]>
Date: Tue, 3 Dec 2002 15:44:03 -0500 (EST)

Hello,

I have a question about SIP Servers (Agents)
interconnection question.  It would be appreciated if
you could give me some point or suggestions.

The question is, if a service provider1(SP1) has a SIP
server in its network and it wants to connect to its
partner service provider2(SP2)'s SIP server so that
the user can roam between these 2 SPs, what kind of
protocol or solution will be applied between these 2
SIP servers to communicate so that the user(who is
registed in SP1) can use SP1's SIP server when he/she
is in SP1 service coverage and use SP2's SIP server
when in SP2 service coverage? What if these 2 SIP
servers are using different databases (e.g. oracle and
infomix)?

Thanks a lot and I look forward to your help!

B.

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