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SBV5121 VoIP Cable Modem User Guide 1
Introduction
Congratulations on your new Motorola
®
SBV5121
Voice over Internet Protocol (VoIP) cable modem! It provides
high-speed access to the Internet and other online services and connections for up to two telephone lines.
SBV5121 Cable Modem
Your VoIP cable modem transmits and receives data much faster than traditional dial-up or DSL (digital subscriber
line) modems. It lets you enjoy surfing the Web without the long wait. Because many network and other factors
can affect performance, the actual speed will vary.
Unlike a dial-up modem, your SBV5121 VoIP cable modem is always online. Just open your browser and surf!
You can use your high-speed, upgradeable VoIP cable modem to connect one or more computers in your home or
business to the Internet. You can connect:
• A single computer equipped with a Universal Serial Bus (USB) port directly to the USB port on the SBV5121
VoIP cable modem
• A single computer equipped with an Ethernet adapter directly to the Ethernet port on the SBV5121 VoIP cable
modem
• Two computers, one to the USB port and one to the Ethernet port
• Up to 31 computers to a single SBV5121 VoIP cable modem using an Ethernet hub, as shown in “Cabling for
Multiple Users” on page 33
For easiest set-up, use the Installation Assistant on the SBV5121 VoIP Cable Modem CD-ROM.
SBV5121 VoIP Telephone Service
The SBV5121 also provides telephone service through your cable connection with the same features as your
traditional phone service. You can connect up to two standard telephone lines using your SBV5121 VoIP cable
modem, supporting:
• Local and long-distance calling
• Standard features like call hold and mute, caller ID, speed dial, call forwarding, call waiting, call return,
three-way calling, and voice mail
• Telephone modem and fax support
• Software upgrades over the network to provide new or improved services
Caution
An external backup power supply may be connected to your SBV5121 that provides standby power for your VoIP
telephone service if AC power is lost. Please contact your service provider for additional information about the
Motorola PB1000 Battery Backup Power Supply.
Use only a standard telephone. Digital phones used in many businesses that connect to a PBX (private
branch exchange) do not operate with the SBV5121.