[SIPForum-discussion] ACK is not sent of 407

[ankit agarwal]

Hi,

Can any one help me with one scenario:

Normal scenario:

A ------ (INVITE) ------> Proxy --------(INVITE)-------> B
A <------ (407)---------- Proxy <--------(407)---------- B
A ------ (ACK)---------> Proxy -----------(ACK)-------> B

A ------ (INVITE) ------> Proxy --------(INVITE)-------> B
A <------ (100)---------- Proxy <--------(100)---------- B
A <------ (180)---------- Proxy <--------(180)---------- B
A <------ (200)---------- Proxy <--------(200)---------- B


But if A don't send ACK of 407 then what proxy should do for INVITE with
cseq-2.

--
Ankit Agarwal
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