![](/images/new-backgrounds/1310275/310275107x1.webp)
User Guide for the Polycom CX700 IP Phone
Making and Receiving Calls
Symptom | Problem | Corrective Action |
|
|
|
There is no dial tone. | Power is not correctly applied to | Do one of the following steps: |
| the Polycom CX700 IP phone. | • Check that the display is illuminated. |
|
| |
|
| • Make sure the LAN cable is inserted |
|
| properly at the rear of the phone (try |
|
| unplugging and |
|
| cable). |
|
| • If using |
|
| system administrator check that the |
|
| switch is supplying power to the |
|
| phone. |
|
|
|
| Dial tone is not present on one of | Do one of the following steps: |
| audio paths. | • Switch between handset, headset (if |
|
| present) or speakerphone to see if dial |
|
| tone is present on other paths. |
|
| • If dial tone exists on another path, |
|
| connect a different handset or |
|
| headset to isolate the problem. |
|
| • Verify that the phone is logged in and |
|
| registered with Microsoft Lync 2010 |
|
| Server. |
|
|
|
4 - 6