
163
SIP mobility: pre-call
MH acquires IP address via
DHCP
optional: MH finds SIP
server via multicast REG-
ISTER
MH updates home SIP
server
optimization: hierarchical
LR (later)
CH
redir
3
1
2
5
foreign
network
home
network
4
mobile host
correspondent host
SIP redirect server
MH
CH
redir
3
1
2
5
4
SIP INVITE
SIP 302 moved temporarily
SIP INVITE
SIP OK
data
MH
MH
Comentários a estes Manuais