Hi all,
I thought I had seen a draft discussing how a SIP
endpoint ought to behave when roaming between subnets in a wirless
network, but I can't find any references. Is there anything documented
for that? I'm thinking of something like RFC 3725, best current
practices for 3PCC. Maybe a best current practices for wireless
networks and subnet roaming.
In general, when the endpoint's IP address changes, it could
use re-INVITE/UPDATE to change the session parameters (if it's in a
call) and REGISTER again to update its AOR binding. Those are the most
obvious actions to take.
I didn't see anything in the SIP, SIPPING, or SIIMPLE charters
discussing mobility, wireless, or roaming. Is there better place to be
looking?
thanks,
Joel
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