RCA THG540 user manual Don’t hear a dial tone when I use a telephone

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Chapter 2: Additional Information

zVerify that the cable modem service is Euro-DOCSIS or DOCSIS compliant by calling your cable provider (DOCSIS will only work if the used frequencies are between 93-861MHz).

I don’t hear a dial tone when I use a telephone.

zTelephone service is not activated. If the rightmost light on the cable modem stays on while others flash, check with your TSP or cable company.

zIf the cable modem is connected to existing house telephone wiring, make sure that another telephone service is not connected. The other service can normally be disconnected at the Network Interface Device located on the outside of the house.

zIf using the second line on a two-line telephone, use a 2-line to 1-line adapter cable. For more Usage and Troubleshooting Tips use the web site links provided on the CD-ROM:

27Illustrations contained in this document are for representation only.

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Contents THG540 Voice Over IP Cable Modem Important Information Euro-DOCSIS compliantOperating Information Product InformationTable of Contents Table of Contents What’s on the CD-ROM Introduction Voice over IP Cable Modem FeaturesAccessing the Diagnostics Display through the CD-ROM Computer Requirements Placing the Rubber Feet on the Cable ModemCable Modem Overview Front Panel MTA OFF Flash MTA Dhcp MTA SNMP/TFTP Rear Panel Wall Mounting What the Modem Needs to Do Its Job Relationship among the DevicesWhat the Modem Does Contact Your Local Cable Company Please verify the following with the cable company Important InformationConnecting the Cable Modem to a Single Computer Attaching the Cable TV Wire to the Cable ModemImportant Connection Information USB Connection to One ComputerConnections and Setup USB Connection Without Using the Installation Wizard Using Windows 2000 for USB ConnectionConnections and Setup Connections and Setup Using Windows Me for USB Connection Using Windows XP for USB Connection Connections and Setup Connections and Setup Connections and Setup Ethernet Connection to One Computer Connecting More Than Two Computers to the Cable Modem Ethernet Hub ConnectionTelephone or Fax Connection Activating the Cable Modem Frequently Asked Questions Additional InformationCan’t get the modem to establish an Ethernet connection General TroubleshootingAll of the lights are flashing in sequence Don’t hear a dial tone when I use a telephone Service Information Glossary Additional Information Fore more information