User Guide for the Polycom CX700 IP Phone
Making and Receiving Calls
Symptom | Problem | Corrective Action |
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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. |
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| |
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| • Make sure the LAN cable is inserted |
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| properly at the rear of the phone (try |
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| unplugging and |
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| cable). |
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| • If using |
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| system administrator check that the |
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| switch is supplying power to the |
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| phone. |
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| Dial tone is not present on one of | Do one of the following steps: |
| audio paths. | • Switch between handset, headset (if |
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| present) or speakerphone to see if dial |
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| tone is present on other paths. |
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| • If dial tone exists on another path, |
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| connect a different handset or |
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| headset to isolate the problem. |
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| • Verify that the phone is logged in and |
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| registered with Microsoft Lync 2010 |
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| Server. |
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