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Telephone Service: Before You Begin
Contacting Your Local Cable Service Provider
You need to set up a telephone account with your local cable service provider in
order to use your cable modem for telephone service. When you contact your cable
service provider, verify the following conditions:
• Does the cable service to your home support two-way, DOCSIS-compatible cable
modem access? If your cable service provider does not provide two-way service,
this modem will not be able to communicate with your cable service provider’s
Internet access and telephone services.
• Can you transfer your existing telephone numbers from another telephony service
provider to your current cable telephony service provider? In some areas, you may
be able to transfer your existing telephone numbers, or your cable telephony
service provider will assign a new telephone number for each current or
additional active telephone line. Discuss these options with your cable telephony
service provider.
You may also need to give your cable service provider the following information:
• The serial number of the modem
• The Media Access Control (MAC) address of the modem
These numbers appear on a bar code label located on the cable modem. The serial
number consists of a series of alphanumeric characters preceded by S/N. The MAC
address consists of a series of alphanumeric characters preceded by MAC. The
following illustration shows a sample bar code label.
T10710
Serial NumberMAC Address
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4004041 Rev B WebSTAR DPX2203 or EPX2203 VoIP Cable Modem User’s Guide 33