Re: [Sip] [Sip-implementors] 200 OK response for hold withdifferent media capabilities

[Vikram Chhibber <vikram.chhibber at gmail.com>]

>> Gateway can respond with media capabilities to a offer less INVITE if it is acting as a 3PCC, not otherwise.
A small correction here. I do not know what Gateway you are talking
about here. For me, a gateway is a SIP end-point and would respond
with its media capabilities for offer-less INVITE.

On Mon, Aug 24, 2009 at 8:59 PM, Vikram
Chhibber<vikram.chhibber at gmail.com> wrote:
> On Mon, Aug 24, 2009 at 6:44 PM, Avasarala
> Ranjit-A20990<ranjit at motorola.com> wrote:
>> Hi Vikram
>>
>> Gateway can respond with media capabilities to a offer less INVITE if it is acting as a 3PCC, not otherwise.
>>
> This is exactly what I wrote in my mail.
> I would again emphasize Paul’s comment. “Hold” is application’s
> interpretation of some values in SDP such as offer with a =
> sendonly/inactive. There is no such SDP called as hold SDP.
> Furthermore,  this offer should be processed as a normal offer as
> there could be a change in IP/port, codecs or codecs attributes.
>>
>> Regards
>> Ranjit
>>
>> -----Original Message-----
>> From: sip-implementors-bounces at lists.cs.columbia.edu [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of Vikram Chhibber
>> Sent: Monday, August 24, 2009 11:35 PM
>> To: sunil.bhagat at wipro.com
>> Cc: sip at ietf.org; sip at core3.amsl.com; sip-implementors at lists.cs.columbia.edu
>> Subject: Re: [Sip-implementors] [Sip] 200 OK response for hold withdifferent media capabilities
>>
>> The gateway can respond with different media capabilities in 200 OK response for offer-less INVITE not for offer that we view as for hold.
>> The gateway should create response as per rules defined in RFC 3264.
>> As far as SIP signalling is concerned, hold INVITE request is treated as a regular re-INVITE request.
>>
>> On Mon, Aug 24, 2009 at 2:55 AM, <sunil.bhagat at wipro.com> wrote:
>>> Hi All,
>>>
>>>
>>>
>>> I have a small query related to HOLD request being sent out.
>>>
>>>
>>>
>>> For a hold request, can gateway respond with different media
>>> capabilities in 200 OK response?
>>>
>>>
>>>
>>> Is the HOLD treated as any normal Re-INVITE?
>>>
>>>
>>>
>>> Regards,
>>>
>>> Sunil.
>>>
>>>
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