Re: [dispatch] Transfer using reINVITE

"Dale Worley" <dworley@nortel.com> Tue, 12 May 2009 15:04 UTC

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From: Dale Worley <dworley@nortel.com>
To: "Szilagyi, Mike" <Mike.Szilagyi@inin.com>
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Date: Tue, 12 May 2009 11:05:48 -0400
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Subject: Re: [dispatch] Transfer using reINVITE
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On Tue, 2009-05-12 at 10:20 -0400, Szilagyi, Mike wrote:
> Is anyone familiar with a transfer scenario that uses reINVITEs?  I’ve
> run into a few RFPs where support for transfer using SIP re-INVITEs is
> on the questionnaire.  Could someone reference an RFC or draft that
> describes this scenario, if there is one.

In addition, many UAs, as part of executing a transfer, first put the
caller on hold using re-INVITE.  Though re-INVITE is not intrinsically
part of the transfer, every phone that I have tested as done a re-INVITE
as the first step of a transfer.

Dale