gwebster

telecom is on the right track. If you are using an analog Polycom on an normal analog line card, then there is no mechanism (disconnect supervision) to tell the Polycom that the other party has disconnected. You can try returning dial tone but the Polycom has to be able to recognize it. If the Polcyom support battery reversal, then you would have to use an OPS card. The other option is to use the Polycom Soundstation Premier 550D (which emulates an M2616 and thus has disconnect supervision) or the Nortel IP Audio Conference Phone 2033 (which emulates an IP Phone 2001 and thus also has disconnect supervision).

twscrb

Thanks for your reply gwebster but I want to tell you that the problem isn't limited to the Polycom phones. We have this problem with any phone we build as a Type 500 set on an analog card.

gwebster

..and you will for the same reason that I gave you for the Polycom. With a standard analog line card, there is no way to signal to the analog phone that the other end of the conversation has disconnected. Think of your home phone. When somebody calls you and they disconnect, you can tell by listening that they have dropped and hangup the phone - or you can wait for the dial tone / howler tone to tell you and then hangup the phone. But that requires you to hang up. No message goes to your phone to tell it to hangup from the network. If you want the phone to hang up by itself, you need disconnect supervison.

twscrb

OK gwebster, I hear what you're saying -- and the reason this problem is especially obvious with the Polycom phones is because there is no handset available to end the call.

Thanks

Rachelle

There is a disconnect button on most Polycom models. What happens if you hit that button after they hang up on the far end?

__________________
No matter where you go, there is the Ladies Love Marty Fan Club. :bow2: :bow2: :bow2:

papa-bear

I agree with Rachelle. Why doesn't the person that was local on the call just hang up the Polycom?