[SIPForum-discussion] sip Call transfer

[praveen subbarao]

Hi Darshan,

The dirrence between Attended & un-attended call transfer is:

In Attended call Transfer(also called as Call Transfer with Consulation), A calls B, then A calls C, establishes peer to peer connection with C (During which B is in HOLD state), Informs C about B, Then keeps C in Hold, Tranfers B to C, Then A comes out.

In Un-attended(Call transfer without Consulation), A will not establish Peer to peer with C, simply transfers. 

I can forward you the detailed call flow in case you need it.

Regards,
Prveen  

  


On Wed, 09 May 2007 Rommel Bajamundi wrote :
>attended = A calls B with bidirectional audio, A calls C with bidirectional
>audio, A transfers B to C
>
>unattended or blind call transfer= A calls B with audio, A calls C and
>during ringing, transfer.
>
>   _____
>
> From: discussion-bounces at sipforum.org
>[mailto:discussion-bounces at sipforum.org] On Behalf Of darshan b n
>Sent: Tuesday, May 08, 2007 12:04 AM
>To: discussion at sipforum.org
>Subject: [SIPForum-discussion] sip Call transfer
>
>
>Hi,
>
>Can anyone please explain the basic difference between sip call transfer
>Attended and Unattended............
>
>
>What i want is in sip call transfer Unattended case if UA1 makes a call to
>UA 2.....rtp session is established or not between ua1 and ua2 or if it is
>activated in Application server then i has to automatically transer it to
>ua3 ...............
>
>please respond asap
>
>
>
>
>
>--
>Darshan B N
>
>Thanks & Regards
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