[SIPForum-discussion] Scenario of SIP

[vijay pal]

Hello Sir,

But according to RFC3261, Early media is just Half duplex and only be
generated by called party and after the 183 and before 200. Is it possible,
two early media in one session because I have heard caller tune after
IVR""While your call is being connected please listen the music".?
Please advice me.

Regards
Vijay Pal

On Mon, Aug 24, 2009 at 11:30 AM, nitin kapoor <nitinkapoorr at gmail.com>wrote:

> Vijay,
>
> Yes in sip scenario we call them early media. Normally early media refers
> to media (e.g., audio and video) that is exchanged
> before a particular session is accepted by the called user. Within a
> dialog, early media occurs from the moment the initial INVITE is sent until
> the User Agent Server (UAS) generates a final response. It may be
> unidirectional or bidirectional, and can be generated by the caller, the
> callee, or both. Typical examples of early media generated by the callee are
> ringing tone and announcements (e.g.,
> queuing status). Early media generated by the caller typically consists of
> voice commands or dual tone multi-frequency (DTMF) tones to drive
> interactive voice response (IVR) systems.
>
> Thanks,
> Nitin Kapoor
>
>
>
> 2009/8/23 vijay pal <vijaypal85 at gmail.com>
>
>> Hi All,
>>
>> These days we are using a function in our  mobiles like Verizon mobile and
>> that is a IVR"While your call is being connected please listen the music".
>> So my question is what is this type of media? Is it early media or some
>> thing else? and if it is early media then how can it be before the session
>> establishment, I mean to say  before 183(session progress)?
>> Please help me to understand this Scenario.
>>
>>
>> Thanks and Regards
>> Vijay Pal
>>
>> _______________________________________________
>> This is the SIP Forum discussion mailing list
>> TO UNSUBSCRIBE, or edit your delivery options, please visit
>> http://sipforum.org/mailman/listinfo/discussion
>> Post to the list at discussion at sipforum.org
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20090825/b2abc317/attachment-0002.html>