7.3 Voice over IP Troubleshooting

Introduction

If you cannot establish a phone call via your Thomson Gateway, try the suggestions below.

Calling over VoIP

If you have problems calling via VoIP, check whether:

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Your telephone is correctly connected to the Thomson Gateway.

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Your telephone is working on the PSTN network:

 

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Connect your phone directly to PSTN (not via the Thomson Gateway).

 

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Try to make a phone call.

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Your phone number, user name, and password is configured correctly.

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The registrar’s and proxy server’s IP address and port number are configured correctly.

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The Power, Broadband/DSL and Voice LEDs are on.

As soon as the Voice LED turns on, you will hear a click, indicating the switch from PSTN to VoIP.

Calling over PSTN

If you have problems calling via the regular phone line, check whether:

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Your telephone is correctly connected to the Thomson Gateway.

If the Thomson Gateway is turned off, phone calls are always routed over PSTN.

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Your telephone is working on the PSTN network:

 

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Connect your phone directly to PSTN.

 

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Try to make a phone call.

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The Forced FXO service is activated, or whether your service provider requested you to dial an extra prefix for making calls via PSTN.

If VoIP is enabled (VoIP Ready LED is on), and when making a forced FXO call, you will hear a click, indicating the switch from VoIP to PSTN.

Problems with Supplementary Services

If you have a problem with a supplementary telephony service, check whether the service is activated.