[VoiceOps] Polycom Ghost Ringing

Jay Hennigan jay at west.net
Tue Dec 28 15:24:46 EST 2010

On 12/28/10 10:19 AM, Eric Hiller wrote:
> We are having the strangest issue that I have seen for some time. A
> customer of ours with Polycom phones (4x ip335, 2x ip550) will
> occasionally (maybe 1 in 50 calls) hear ringing on the line along with the
> other party. It has happened on both incoming and outgoing calls across
> apparently all of the phones. We use ip550 in our office and have never
> had such a problem (we run the same firmware as well, although their
> hardware is newer). It can be fixed if the person using the phone puts the
> other person on hold and then takes them off hold. They have just been
> doing this by double pressing hold so the other party doesn't even realize
> it.

Is this a ringback tone heard in the handset, or is the loudspeaker in
the phone base playing audible ringing?

Does the icon for the call show two-way arrows?

What SIP platform?

We've not seen this and have hundreds of Polycom phones in service,
mostly on a Broadsoft platform.

Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV

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