[SIPForum-discussion] Reliable provisional response

[AMIT ANAND]

Hi,

Yes UAC must indicate that it supports 100rel.

supported: 100rel

Then in response proxy or UAS can send back response with

require: 100rel

to get the Provisional acknowledgement.


Cheers

Amit

On Thu, Jul 7, 2011 at 5:01 PM, tester voip <tester.voip1 at gmail.com> wrote:

> All,
>
> The proxy cant generate the provisional responses of its own except for
> 100,181 and 182.
> The 180 and 183 has to be sent from the UAS which the proxy only can
> forward.
> And reliablity is usualy (and always) done with 180 and 183.
> So if you want to say that when proxy can send relaible provisional
> responses, then the answer is as soon as it gets them from the UAS.
> But certainly it cant generate them on its own.
> Hope this clarifies your doubt.
>
> Thanks
>
>
>
> On Wed, Jul 6, 2011 at 9:02 PM, Rohan Almeida <almeida.rohan at gmail.com>wrote:
>
>> Hi Satyadarshi,
>>
>> The proxy can send reliable  provisional responses  is the INVITE
>> contains a 'supported' header field with option tag 100rel .
>>
>> This is as per RFC 3262.
>> The RFC 3261 most commonly refered for SIP does not talk about
>> reliability of  provisional responses .
>>
>> regards,
>> Rohan Almeida
>>
>> On 7/4/11, K Satyadarshi <satyadarshi28 at gmail.com> wrote:
>> > Hi Forum,
>> >
>> > Can someone pls tell about scenarios where a proxy can send reliable
>> > provisional responses ?
>> >
>> > --
>> > K Satyadarshi
>> >  <satyadarshi28 at gmail.com>
>> >
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>
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-- 
Thanks
Amit Anand
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