[Sip] Doubt in Invite client transaction - proceeding state

[gaurav khurana <gkhurana111 at yahoo.com>]

Hi,

I looked into the previous threads too but couldn't clarify my doubt, so posting the question again.

My question is that how long will the client transaction be alive once we enter in proceeding state.

Previous threads suggest transaction will terminate when timer B, i.e. 64*T1 expires. But, what I see in RFC3261 - 17.1.1.2 fig. 5 (INVITE Client transaction) that timer B fires only in Calling state. There's no timer shown for proceeding state.

Does it mean that in proceeding state, the transaction will not terminate until the caller disconnects the call manually?

 

GAURAV KHURANA
# 91-9886646104

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