VoIP modem

(redirected from voice modem)

VoIP modem

(1) (Voice Over IP modem) A device that converts Internet-based voice service from the cable or telephone company to the user's telephones. Officially called an analog telephone adapter.

(2) (Voice Over IP modem) A device that converts Internet-based voice service from the cable company to the user's analog telephones. A VoIP modem combines a DOCSIS cable modem and analog telephone adapter (ATA) in one unit. Officially an "embedded-multimedia terminal adapter" (E-MTA), the modem converts the cable company signals to packets and vice versa, and the terminal adapter converts the packets to analog voice and vice versa. The adapter also delivers dial tone and manages the call setup.

If the VoIP modem supports cable access, it may be called a "VoIP cable modem," and for DSL telephone access, a "VoIP DSL modem."

CableLabs Certification
PacketCable certification from CableLabs ensures that quality of service (QoS) and other critical telephony and real-time functions are supported for delivering multimedia over IP. See analog telephone adapter, VoIP, DSL, cable modem and DOCSIS.


Combined and Separate Units
A VoIP modem can stand alone for VoIP conversion only, or it can be combined with a cable or DSL modem for both voice and data over the Internet.







Connecting a VoIP Cable Modem
This wiring diagram for a Cisco VoIP cable modem shows the coaxial line (RF cable) from the cable company coming into the unit. Analog outputs go to the telephones, and digital output to the PC (or to a switch for more connectivity). (Image courtesy of Cisco Systems, Inc.)
References in periodicals archive ?
TELECOMWORLDWIRE-4 January 2008-Motorola unveils SURFboard SBV5422 Digital Voice Modem and DECT system(C)1994-2008 M2 COMMUNICATIONS LTD http://www.m2.com
The 300S system comes with an Intel 1.0 GHz Celeron processor; 128 MB SDRAM memory; an EV700 17" monitor; Intel 3-D graphics; a 20 GB Ultra ATA hard drive; a recordable/fewritable CD-RW drive; integrated enhanced audio and GCS300 speakers; a 56K voice modem; and one year of America Online Internet access.
Users can send and receive voice messages and faxes from a single screen via a local voice modem or multichannel voice board.
SecureLink can replace the discontinued analog Digital Voice Modem.
Using standard components in the PC such as a sound board and voice modem, pwTelephone provides an extremely cost effective mechanism to create multi-line and completely extensible solutions.
The system then reports the disturbance to the user immediately by: faxing the user a picture captured by the camera; calling the user via voice modem; playing a pre-recorded voice warning, or e-mailing the video image to the user.
(NYSE:MOT announced the next-generation SURFboard SBV5422 Digital Voice Modem and Integrated DECT Cordless Phone System designed to deliver convenient whole- home telephone and data services over cable's broadband connection to the home.
A voice modem can be used as a telephone answering machine with voicemail so that all the family can receive their own messages.
Its new entry-level Ready system, which features a 120MHz Pentium processor, 8Mb of RAM, a 1.2Gb hard drive, 28.8Kbps data, fax and voice modem, and 4x CD-ROM drive, is expected to have a street price $1,799.
To activate the system users dial into their PC via a standard voice modem and say the password in natural speech, after which the system will read out received e-mails and voice mail and informs about faxes.
A voice modem and the correct software turns your PC into a telephoning answering machine which will play a pre-recorded message to a caller and then record any incoming messages as sound files on the hard disk.
DAYTON, Ohio - AT&T Global Information Solutions is bringing out a voice modem kit compatible with the company's line of Globalyst notebook computers.