[VoiceOps] Polycom ghost ringing

PE peeip989 at gmail.com
Tue Jun 7 14:11:43 EDT 2011

Working with Polycom, we have been able to replicate this issue with some
regularity (not 100% of the time, but approx 75%). It is related to
transferring of calls. So far, here's what we know:

To Replicate:

   1. User A receives and answers a call
   2. User A does a warm transfer to User B
   3. While User B is still ringing, User A hangs up (the call is
   transferred to B)
   4. User A's hears ringing mixed into their next call.

Then the problem does NOT occur if:

   - User B answers (actual warm transfer) before User A hangs up
   - User A presses the transfer key (a second time) instead of hanging up
   - User A uses the Blind transfer key

Additionally, if/when the problem does occur, if User A places the call on
hold then picks it up, the ringing stops (the reINVITE appears to clear it).

On Fri, Jun 3, 2011 at 1:54 PM, Pete E <peeip989 at gmail.com> wrote:

> Back in January there were a couple of posts related to "ghost ringing" on
> Polycom phones. At the time the workaround seemed to be to downgrade to
> v3.3.0 (we're on 3.3.1). Looking at the release notes on 3.3.1 it looks like
> the .0 release was pretty buggy and therefore we'd rather not downgrade to
> it. Polycom has not acknowledged (to us) that they even know about the
> problem. Does anyone know if any headway has been made in actually fixing
> the issue?
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