Enable Debug logging on the Polycoms and look at the app log to see if you see anything on the Phone itself. -----Original Message----- From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Eric Hiller Sent: Tuesday, December 28, 2010 11:19 AM To: voiceops at voiceops.org Subject: [VoiceOps] Polycom Ghost Ringing 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. Call setup on these calls is all normal: invite from pbx to phone 100 trying from phone to pbx 180 ringing from phone to pbx 200 ok from phone to pbx ack from pbx to phone <start rtp> I have listened to the RTP and there is absolutely no ringing! At this point I am entirely out of ideas! Does anyone have anything to suggest or has possibly encountered this before? Thanks for any ideas or help! -Eric _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops