Scientific Atlanta DPX2203CTM User Manual

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WebSTAR DPX2203C and EPX2203C VoIP Cable Modem User’s Guide 
30 
 
How Do I Use My Modem for Telephone Service? 
Contacting Your Local 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 
CM MAC
. The following illustration shows a sample bar code label. 
T11699
MAC Address
Serial Number
 
Write down these numbers in the space provided here. 
Serial Number  _______________________   
MAC Address  ________________________