[SIPForum-discussion] SIP response 480 is same as SIP response 408
Murali Vuppandla
mvuppand at cisco.com
Mon Jun 14 11:14:52 UTC 2010
I think it depends upon the cause value you are receiving in ACM/REL
message. As per RFC3398 this is how it maps the values.
You can refer to RFC3398 for further clarifications.
ISUP Cause value SIP response
---------------- ------------
1 unallocated number 404 Not Found
2 no route to network 404 Not found
3 no route to destination 404 Not found
16 normal call clearing --- (*)
17 user busy 486 Busy here
18 no user responding 408 Request Timeout
19 no answer from the user 480 Temporarily unavailable
20 subscriber absent 480 Temporarily unavailable
21 call rejected 403 Forbidden (+)
22 number changed (w/o diagnostic) 410 Gone
22 number changed (w/ diagnostic) 301 Moved Permanently
23 redirection to new destination 410 Gone
26 non-selected user clearing 404 Not Found (=)
27 destination out of order 502 Bad Gateway
28 address incomplete 484 Address incomplete
29 facility rejected 501 Not implemented
31 normal unspecified 480 Temporarily unavailable
Regards,
Murali.
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of amit salunkhe
Sent: Saturday, June 12, 2010 7:00 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] SIP response 480 is same as SIP response 408
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
unreachable?
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.
Amit--
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