The polycom is not accepting leader passcodes for AT&T conference numbers. It is picking up the numbers 2 or 3 times when entered, then saying the passcode is invalid. It does accept the conference number dialed and the participant passcode-just not the leaders. We have verified with AT&T that the issue is not on their end.

When the Polycom is on-hook (not in a call), use the volume rocker to change the volume of the ringer.

That Polycom runs off of Analog dial tone.
Either a dedicated line or in most cases from an ATA off the phone system.
You should be calling your vendor/tech in that handles the phone system to check programming, cabel, jack and the Polycom itself too.

This will depend upon whether your Polycom is connected to a PBX system or using a public landline. If using the Polycom through a PBX you may need to consult the system admin as you will often need to enter a 'conference code' before you dial the second party ie.

1. Dial the first party and ask them to hold
2. Press the Flash key
3. Dial the conference code for your system ie. #46
4. Dial the next party and ask them to hold
5. Press the Flash key twice and all parties are joined.

If you are using a public landline (ie. home phone line) then you will be limited to the conference services that your phone company provide and these are usually also accessed via a code. There are also conferencing services that for a fee you can dial into and follow the prompts to austomatically arrange your conference call.

1) try setting unit to auto answer and it will automatically pick up incoming call

2) far end will only control a Polycom camera and it will not work through a bridged call - it must be point to point

hope this helps you

good luck!!

A Google search netted this helpful article. I appears you'll need to contact the service provider.

https://headsetplus.com/blog/make-conference-calls-3-way-calling-polycom-conference-phone/

When i connect the other end successfully(all the blue balls color turned to green)but with only a sentence, says:"secure conference encryption 。。。"

Conference call is not a feature of the phone, but a feature of the telephone system in the company. Usually you press a sequence of keys like flash #02 to trigger this function in the phone system. If your company phone system does not offer the feature then you have to use an external conference call provider.

The polycom didn't allow for numbers, only letters.....
How do I do password recovery in this case?

Check out the following things:-

1. When dialing a ISDN number, be sure that the call preference has not been set to IP H.323 on the home screen just below the dialing field.

2. Check with your service provider that outwards dialling have been enabled on the lines provided to you.

I just called Polycom and the guy said it starts with 0003 or 0004. Sure enough I had one of those numbers, it was the same as the serial number on the box the phone came in. This number is found on a sticker on the back side of the phone. Easy to find, but not labeled as a "mac address"