[SIPForum-discussion] Regarding Unsupported URI

[Umang]

Please look at Test Procedure

http://cert.v6pc.jp/sip-ipv6/ua6/doc-1.2/sip-ipv6-ua/UA/torture/UA-16-2-31.html

Umang Patel | MIT | Communications Research Engineer

On Thu, Feb 11, 2010 at 12:16 PM, lakhan patel <lakhan.p at gmail.com> wrote:

> Hi All,
>
>
>                                               SUB A
> B2BUA              SUB B
>                                                    |    REGISTER
> |                        |
>
> |----------------------->|                        |
>                                                    |     200 OK
> |                        |
>
> |<-----------------------|                        |
>                                                    |
>    |     REGISTER   |
>                                                    |
>   |<----------------------|
>                                                    |
>   |      200 OK       |
>                                                    |
>    |---------------------->|
>   Receive an INVITE request           |  INVITE W/SDP|
>               |
> with Unsupported URI scheme       |----------------------->|
>               |
>                                                    | 416 Unsupp URI|
>                 |
>     Sends a 416 Unsupported          |<----------------------|
>                 |
>         URI scheme response           |                         |
>                 |
>
>
> In this call flow SUB-A is sending INVITE request with unsupported URI for
> that SUB-A receive  "416 Unsupported URI scheme,
>
> *1. Can any one tell me, Do SUB-A need to send ACK  for 416?
> 2. What should be the behavior of B2BUA when SUB-A doesn't ACK for 416?
>
> Do we need to send ACK for every 4xx response?*
>
> *In this scenario SUB-A sending unsupported URI in INVITE request, What
> happen when it send unsupported URI in REGISTRATION itself?
> Again do SUB-A need to ACK for 416?*
>
> Thank you all in advance for responding my query :)
>
> --
> Thanks & Regards
> Shivlakhan Patel
> Email: lakhan.p at gmail.com, lakhan.p at hotmail.com
> IBM India Private Ltd. Bangalore
> Contact: +91-9902791177
>
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