Cisco DPQ3213 User Manual page 17

How Do I Subscribe to High-Speed Internet and Telephone Service?
I Want to Use the Cable Modem for Telephone Service
You will also need to set up a telephone account with your local service provider to
use your cable modem for telephone service. When you contact your service
provider, 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 telephony service
provider.
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