Subject: Re: [Sipping] REFER dialog is kept active indraft-ietf-sipping-cc-transfer-10

From: [email-masked]
Date: Sun, 5 Oct 2008 22:04:57 -0400 (EDT)

From: "Ian Elz" <[email-masked]>

   The REFER creates an implicit subscription dialog.

   As in the use of SUBSCRIBE the dialog is terminated when the
   subscription-state is set to 'terminated' or the subscription timer
   expires.

   BYE is only used for INVITE dialogs.

In the modern language, REFER creates a "subscription dialog usage"
within a dialog.  The subscription dialog usage ends through one of
the means for ending subscriptions.  BYE is used only to terminate
"invite dialog usages".

Dale
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