Hi Marut!
  This is because, for unattended transfer, you don't need to put the first guy(or 
gal) on hold.
  In practice, you disconnect from the first guy(or gal) and then send an INVITE to 
the second
  guy(or gal). That's it! It's when you want to do an attended call transfer or a 
consultation
  call hold, that you may need to put the 1st UA on hold and then dial out to another 
UA. i.e you
  want to keep the first call in-case you need to get back to it.
Warm Regards,

Jerry Ipe Thomas 
Engineer(R&D) 
D-Link India Ltd. 
Software & R&D Center 
Bangalore - 68 
Ph: +91-80-26788350/1 Extn: 117 
Mob: +919886442530 
  -----Original Message-----
  From: Marut Das [mailto:[EMAIL PROTECTED]
  Sent: Saturday, July 31, 2004 3:36 PM
  To: [EMAIL PROTECTED]
  Cc: [EMAIL PROTECTED]
  Subject: [Sip-implementors] Confusion with unattended call txfer


  In the call flow for unattended call transfer, in the document
  draft-ietf-sipping-cc-transfer-02.txt, it is first shown that call is put on hold 
before a REFER for the transfer is sent out.

  In the service example document,draft-ietf-sipping-service-examples-07.txt, in the 
example of the same on page 41, the REFER is sent without putting the call on hold. 
This is in contradiction to the above document. Am I misinterpreting something over 
here. Could anyone explain the behaviour of the same ?

  Rgds
  Marut 



   
_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

Reply via email to