Richard,
There have been some work in the past involving SIP-based terminal
mobility. You can look at some of the references at
www.research.telcordia.com/sip-mobile.
To answer your question, yes it is possible to do vertical handover using SIP
as a mobility protocol. We have done some work in that respect, you can find
reference to this work at the following link.
http://www1.cs.columbia.edu/~dutta/research/wireless-mimm.pdf
Thanks
Ashutosh
________________________________
From: [EMAIL PROTECTED] on behalf of Richard Good
Sent: Mon 8/8/2005 3:38 AM
To: sip-implementors@cs.columbia.edu
Subject: [Sip-implementors] Mobility support using SIP
Hi,
I am very new to SIP and have some basic questions regarding mobility
support. I have read that the two main mobility protocols at the moment
are SIP and MIP. I am doing an undergraduate thesis (3 months) on the
topic of vertical handovers between UMTS and WLAN networks. Questions:
1) Is it feasible/possible to use SIP to support mobility and perform
handovers between these networks (Also given that I only have 3 months)?
2) SIP is an application layer protocol, does this mean that I only have
to implement it at the end node. i.e: Do i need more than a laptop
equipped with WiFi card and UMTS datacard?
3) I have found several implementations of MIP on the net (mainly for
linux platforms), do such implementations exist for SIP?
thanks very much for your help,
Richard
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