GENESIS
TM
DM MONITOR
Programming/Troubleshooting Guide
P4520EN.04 07/14/2010
17
Phone Service
The DM with at least 4.10.11A firmware works with the types of phone service and companies as
listed in the table below. If you have questions, are unsure, or otherwise can not establish a phone
connection while attempting to allow the DM Monitor to transmit, contact Honeywell HomMed
Customer Service.
Service Type
Examples
Status
Normal Phone Line
The Bell System
Works
Normal Phone also using DSL Internet
AT&T
Works with DSL Filter between monitor and
wall jack
Hybrid VOIP*
Cable Companies such as:
Comcast
Charter
Time Warner (Road Runner)
Bright House
Qwest
Cox
Frontier
AT&T
Works 4.10.11A and newer firmware
Full VOIP
Services such as:
Vonage
Magic Jack
Skype
Verizon FiOS
Will NOT work
PBX , and full digital phone lines
Some office phones systems,
Hotel phone lines
Will Not Work
*WARNING*
could damage the modem
*VOIP – Voice over Internet Protocol (VOIP) signifies a wide range of transmission technologies for
delivering voice communications over a network such as the Internet or other packet-switched
networks. Other terms frequently encountered and synonymous with VOIP include, but are not
limited to, IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony,
and broadband phone.
Internet telephony refers to communications services—voice, facsimile, and/or voice-messaging
applications—that are transported via the Internet, rather than the public switched telephone
network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of
the analog voice signal to digital format and compression/translation of the signal into Internet
protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving
end.
VOIP systems employ session control protocols to control the establishment (set-up) and
termination (tear-down) of calls as well as audio “codecs” that encode speech, allowing transmission
over an IP network as digital audio via an audio stream. Codec use is varied between different
implementations of VOIP (and often a range of codecs are used); some implementations rely on
narrowband and compressed speech, while others support high fidelity stereo codecs.
