Troubleshooting Your SoundPoint® IP 550 Desktop Phone
Calling
Symptom | Problem | Corrective Action |
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There is no dial tone. | Power is not correctly applied to | Do one of the following: |
| the SoundPoint IP 550 phone. | • Check that the screen is illuminated. |
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| |
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| • Make sure the LAN cable is inserted |
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| properly at the back of the phone (try |
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| unplugging and |
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| cable). |
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| • If using Power over Ethernet (PoE), |
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| have your system administrator check |
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| that the switch is supplying power to |
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| the phone. |
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| Dial tone is not present on one of | Do one of the following: |
| the audio modes. | • Switch between Handset, Headset (if |
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| present) or |
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| Speakerphone to see if the dial tone is |
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| present for one of audio modes. |
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| • If the dial tone exists on another audio |
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| mode, connect a different handset or |
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| headset to isolate the problem. |
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