DIAL TONE CONTINUES ON POLYCOM CX200 - Polycom CX200 IP Phone

You may visit your Mobil Sevice Provider's Client Attention and ask them. Maybe it's a configuration issue. Maybe it can be solved doing a Factory Reset - The know the codes to do it.


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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.

sounds like the 'brick' went bad

this is the power supply try replacing it

also and possibly more important did you reprogram phone and phone number when you moved it??

make sure you reset all settings and start new

yes do a full reset and reprogram for new phone number and all settings when you move phones

It depends on what system it is installed on.

NUT, generally, with the first caller on, press flash you will get intercom tone again, dial 9 and connect to the next party. Once connected, press flash again and you should be connected to the original party.

I have a polycom soundpoint pro SE-225. when i either pick up the hand set to make a call OR press the speaker button to make a call i get a dial tone for a few seconds, then the dial tone jumps up and gets real loud for a few seconds and then goes completely away and will not let me make any calls. Any ideas what the heck is wrong??

Hi Debbie,

Try Multimessage systems based in Potters Bar for repairs.

We repair Conference phones along with a host of other manufacturers products.

If you are local we can either pick up from you or you can drop them off and we will quote on the repair before we start.

Please call me , Paul Morgan, on 07703 270679 for more details.

Multimessage Systems

Avaya Global Repair Centre

BT Repair partner

The issue isn't exactly resolved. This appears to be due to an incompatibility of the Polycom Se-225 on our Meridian 1 phone system. But Converse handsets with MWI work fine. I have a partial solution by disabling the lamp (LPD on class-of-service), while leaving MWA setting. This allows the interrupted dial-tone when the user lifts the handset.

Check the phone cable you are using for your POTS line. Attach a phone directly to the phone jack and see if it is clear or static without the device.

Someone in our office recently damaged the RJ-45 cable for our Polycom Soundstation. Because the jack was damaged I could not determine the order of the cables. After a call to polycom, we found the pinout information we needed - so I thought I would share, in case anyone else finds themselves in a similar situation:
With the RJ-45 prong pointing down the wires, from left to right are:

• Black
• Brown
• Red
• Orange
• Yellow
• Green
• Blue
• White

Then Crimp and test. I got this information directly from Polycom for use with the Polycom Soundstation. This information was not easy to get. They originally told me they could not provide the information and I would have to buy a power adapter. This is not true, just trim the cable and follow the above instructions.