[SIPForum-discussion] SIP response 480 is same as SIP response 408

amit salunkhe amitsalunkhe21 at gmail.com
Sat Jun 12 13:29:31 UTC 2010

Hi All

As per the following call flow can anybody gudie me whether receiving Sp
response 408 instead of 480 when far end PSTN user is unavailable or

Call Flow-

Voip provider 1--------------------->VOIP provider2_----------------------->
PSTN operator--------------------------> PSTn network--->User

If VOIP provider 1 getting SIP response 408 requs. time out instead of 480
Temp. unavailable, is this right signaling? Within RFC draft 2833 is here
any comment on this,like for temp. unavailable or unreachable user we can
accept 408 instead f 480?

Please comment your thughts.

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