Phone Technology supports most SIP based Analog Telephone Adaptors (ATAa), IP Phones and Softphones. We provide easy to understand configuration guides for many popular manufacturers. To view online installation instructions for a device you already own, click below. If your device is not listed below, click
here for a guide that configures your device with us.
List Of Devices
Linksys SPA-2002 2 Port FXS Analog VoIP Adapter $78.95
The Linksys SPA-2002 features two POTS (Plain Old Telephone Service) ports for connection to existing analog phones, fax machines, PBX and key system communication platforms. The SPA includes an Ethernet interface for connection to a home or office LAN. Each SPA service line can be independently configured via software controlled by the service provider and/or the end user. The SPA-2002 uses the SIP Protocol, and is compatible with SIP Version 2.
The Linksys SPA-2002 features the new ID that Linksys has rolled out on the SPA-1001 and SPA-2100. From a feature and functionality point of view, the SPA-2002 ATA is identical to the SPA-2000. The SPA-2002 hardware design provides expanded memory support (twice the memory of the SPA-2000) to accommodate new features available in future SPA-2002 firmware updates.
Linksys SPA-2002 Features:
Terminating Impedance Agnostic - 8 Settings
Call Waiting, Cancel Call Waiting
Caller ID with Name / Number
Caller ID Blocking
Call Waiting Caller ID with Name / Number
Call Forwarding: No Answer / Busy / All
Do Not Disturb
Call Transfer
Three-Way Conference Calling with Local Mixing
Message Waiting Indication - Visual and Tone Based
Call Return
Call Back on Busy
Call Blocking with Toll Restriction
Delayed Disconnect
Distinctive Ringing
Off-Hook Warning Tone
Selective / Anonymous Call Rejection
Hot Line and Warm Line Calling
Speed Dialing of 8 Numbers / Addresses
Music On Hold
Linksys
PAP2T-NA Analog VoIP Adapter (2)
FXS Unlocked
$82.95
T38 Fax Compatible
The Linksys PAP2T Internet
Phone Adapter enables
high-quality feature-rich VoIP
(voice over IP) service through
your broadband Internet
connection. Just plug it into
your home Router or Gateway and
use the two standard telephone
ports to connect analogue phones
or use one of the ports for a
fax machine.
Linksys
PAP2T-NA Analog VoIP Adapter (2)
FXS Unlocked
Each phone
port operates independently,
with separate phone service and
phone numbers -- like having two
telephone lines. You'll get
clear reception and a reliable
fax connection, even while using
the Internet at the same time.
With Internet
telephony, along with low
domestic and international phone
rates, an impressive array of
special telephone features are
available. Choose your preferred
free local dialing US area code,
regardless of where you live. Or
add a virtual telephone number
in any area code, forwarded to
your Internet phone. You can
even add a toll-free number.
The Linksys
Internet Phone Adapter is
compatible with these and all of
the other special telephone
features that are available from
your Internet telephony service
provider, such as Caller ID,
Call Waiting, Voicemail, Call
Forwarding, Distinctive Ring,
and much more.
Let the
Linksys Internet Phone Adapter
enhance your existing Internet
connection with a high-quality
high-value VoIP service.
Features
Two voice
ports (RJ11) for analog
phones or Fax machines with
two independent telephone
numbers
One RJ-45
port for 10/100 Mbps
Ethernet connection
Supports
multiple voice compression
standards: G.711, G.726,
G.729, and G.723.1
Web-based
configuration through a
built-in web server
Supports
DTMF tone detection and
generation
Supports
FSK Caller ID, DTMF Caller
ID and FSK VMWI
Supports
Echo Cancellation and Voice
Activity Detection (VAD)
Password
protected access and
configuration
Supports
auto-provisioning with
remote firmware upgrade
Linksys
SPA3102 NA 1FXS / 1FXO
Analog VoIP Gateway
$94.95
The
SPA3102 NA from Linksys is
slated as the replacement
for the popular SPA3000,
and offers both 1 FXS
station side port and 1 FXO
PSTN jack, and features
integrated call routing for
local and emergency calls,
excellent for service
providers and remote
offices!
Phone
Adapter + PSTN Gateway
Linksys
SPA3102 NA Phone Adapter +
PSTN Gateway The SPA3102 NA
features VoIP adapter
functionality found in the
SPA2002 and SPA1001 with the
additional benefit of an
integral connection for
legacy telephone network
"hop-on, hop-off"
applications. SPA3102 NA
users will be able to
leverage their broadband
phone service connections
more than ever by
automatically routing local
calls from cell phones and
land lines to a VoIP service
provider and vice versa.
A typical
user calling from a land
line or mobile phone will be
able to reduce and even
eliminate international and
long distance telephone
charges by first calling
their SPA3000 via a local
phone number or by using a
telephone connected directly
to the unit. The advanced
authentication and call
routing intelligence
programmed into the SPA-3102
NA will connect the caller
via the Internet to the far
end destination with
security and ease. Using the
SPA3102 NA at the far end,
calls can be answered
immediately or further
processed as a local call to
any legacy land line or
mobile phone allowed by the
SPA-3102 NA dial plan.
If power
is lost to the unit or the
VoIP service is down, calls
can be sent to a traditional
carrier via the FXO
interface
Linksys
SPA2100 Analog Telephone
Adaptor
$87.95
All new Linksys SPA2100 Dual FXS SIP
Adapter. Upgrade from
SPA2000 adding a second
Ethernet (RJ45) port and
additional feautures.
Inexpensive,
easy-to-install and
simple-to-use, the Linksys
SPA2100 connects standard
telephones and fax machines
to IP-based data networks.
IP telephony service
providers and enterprise
users can offer traditional
and enhanced communication
services via the customers'
broadband connection to the
Internet or Local Area
Network (LAN)
The SPA2100 features two
POTS (Plain Old Telephone
Service) ports for
connection to existing
analog telephones. The
SPA2100 includes an Ethernet
interface for connecting to
a home or office PC (LAN) as
well as an Ethernet
connection to the broadband
modem or router (WAN). Each
SPA-2100 service line can be
independently configured via
software controlled by the
service provider and/or the
end user.
With the SPA2100,
individuals and companies
are able to protect and
extend their past
investments in telephones,
conference speakerphones,
and fax machines as well as
control their migration to
IP with an extremely
affordable, incremental
investment.
Linksys
SPA2100 Key Features
Terminating
Impedance Agnostic - 8
Settings
Call Waiting, Cancel
Call Waiting
Caller ID with Name
/ Number
Caller ID Blocking
Call Waiting Caller
ID with Name / Number
Call Forwarding: No
Answer / Busy / All
Do Not Disturb
Call Transfer (Blind
and Consultative)
Three-Way Conference
Calling with Local
Mixing
Message Waiting
Indication - Visual and
Tone Based
Call Return
Call Back on Busy
Call Blocking with
Toll Restriction
Delayed Disconnect
Distinctive Ringing
- Calling and Called
Numbers
Off-Hook Warning
Tone
Selective /
Anonymous Call Rejection
Hot Line and Warm
Line Calling
Speed Dialing of 8
Numbers
Music on Hold
Fax - G.711
Pass-Through or Real
Time Fax over IP via
T.38 (Pending)
Grandstream
Handytone 286
(1) FXS Port -
Analog Adapter
$49.95
Grandstream
HandyTone 286
ATA-286 is an
award-winning next
generation VoIP
analog telephone
adapter based on
industry open
standards. Built
upon innovative
technology,
Grandstream
HandyTone ATA-286
features market
leading superb sound
quality, compact
size, and rich
functionalities at
highly-affordable
price.
Support NAT
traversal using
IETF STUN and
symmetric RTP
(compatible with
Cisco’s ATA-186,
etc)
Advanced Digital
Signal
Processing (DSP)
to ensure superb
hi-fidelity
audio quality
Provides 1 LAN
port and 1 FXS
interface for
any analog
telephones,
cordless phones,
and fax machines
Support
transparent Fax
pass-through and
in the future
T.38 (pending)
Interoperable
with various 3rd
party SIP end
user device,
Proxy/Registrar/Server,
and gateway
products
Advanced and
patent pending
adaptive jitter
buffer control,
packet delay and
loss concealment
technology
Support popular
codecs including
G.723.1
(5.3K/6.3K),
G.729A/B, G.711
(a-law and
u-law), G.726,
and G.728.
Dynamic
negotiation of
codec and voice
payload length
Support standard
voice features
such as Caller
ID Display or
Block, FLASH,
in-band and
out-of-band DTMF
(RFC2833), Dial
Plans, off-hook
auto dial, early
dial,
click-to-dial
Support acoustic
echo
cancellation,
voice mail with
indicator,
downloadable
ring tone
(pending)
Support Silence
Suppression, VAD
(Voice Activity
Detection), CNG
(Comfort Noise
Generation),
Line Echo
Cancellation
(G.168), and AGC
(Automatic Gain
Control)
Support DIGEST
authentication
and encryption
using MD5 and
MD5-sess.
Provide easy
configuration
thru manual
operation
(attached analog
phone keypad and
voice prompt,
Web interface)
or personalized
automated
provisioning via
central
configuration
file for mass
deployment.
Support for
Layer 2 (802.1Q
VLAN, 802.1p)
and Layer 3 QoS
(ToS, DiffServ,
MPLS)
NAT-friendly
remote software
upgrade
capability (via
tftp) even from
behind
firewalls/NATs.
Support for
fail-over SIP
server and DNS
server (pending)
Grandstream
HandyTone 486 is an “All-In-1” VoIP IAD based on SIP
standard. Built upon Grandstream's innovative
technology, HandyTone 486 features superb sound quality,
rich functions, high degree of integration, ease of use,
compact size, and ultra-affordability.
Key Features
Supports SIP2.0, TCP/UDP/IP, RTP/RTCP,
HTTP, ICMP, ARP/RARP, DNS, DHCP (both client and
server), NTP, PPPoE, TFTP, etc.
Built-in router, NAT and Gateway.
Powerful digital signal
processing (DSP) to ensure superb audio quality;
advanced adaptive jitter control and packet loss
concealment technology.
Ultra compact (wallet size) and
lightweight design, great companion for travelers.
Supports various vocoders
including G.711 A-/U-law, G.723.1, G.729A/B, G.728,
G.726, iLBC.
Supports silence suppression and
VAD, AGC, and echo cancellation (G.168).
Supports standard encryption and
authentication (DIGEST using MD5 and MD5-sess).
Supports layer-2 (802.1Q VLAN,
802.1p) and layer-3 (DiffServ, ToS) QoS.
Supports automated NAT traversal
without manual manipulation of firewall/NAT.
Supports remote automated
provisioning and software upgrade even through
firewall/NAT to enable “zero configuration” and
“plug-and-dial” for end users.
Supports device configuration via
built-in IVR, Web browser or central configuration
file.
Supports DNS SRV Look Up.
SIP Server Fail Over (pending).
NEW
Grandstream Handytone 488
Multiport Analog Adapter
SIP VoIP FXS + FXO Gateway
$69.95
Grandstream HandyTone 488
is an “All-In-1” VoIP IAD
based on SIPstandard.
Built upon Grandstream’s
innovative
technology,HandyTone 488
features superb sound
quality, rich functions,
high degree of integration,
ease of use, compact size,
and ultra-affordability.
Dual
RJ45 (LAN & WAN)
Dual
RJ11 - (1) FXS, (1) FXO
Built
in DHCP, NAT & Router
PSTN
Pass-through
Support SIP2.0 , TCP/UDP/IP
, RTP/RTCP , HTTP , ICMP
, ARP/RARP , DNS , DHCP
(both client and server)
, NTP , PPPoE,TFTP, etc.
Built-in router, NAT and
Gateway
Powerful digital signal
processing (DSP) to
ensure superb audio
quality; advanced
adaptive jitter control
and packet loss
concealment technology
Ultra
compact (wallet size)
and lightweight design,
great companion for
travelers
Support various vocoders
including G.711 A-/U-law
, G.723.1, G.729A/B,
G.728, G.726, iLBC.
Support Caller ID/Name
display or block, Hold,
Call Waiting, Call
Transfer, Call Forward,
Auto Answer (Intercom),
Flash
Support customizable
ring tone and fax pass
through
Support silence
suppression and VAD ,
AGC , and echo
cancellation (G.168)
Support standard
encryption and
authentication (DIGEST
using MD5 and MD5-sess)
Support layer-2 (802.1Q
VLAN, 802.1p) and
layer-3 (DiffServ, ToS)
QoS
Support automated NAT
traversal without manual
manipulation of
firewall/NAT
Support remote automated
provisioning and
software upgrade even
through firewall/NAT to
enable “zero
configuration” and
“plug-and-dial” for end
users
Support device
configuration via
built-in IVR, Web
browser or central
configuration file
Grandstream Budgetone GS-101
The Grandstream Budgetone GS-101 IP Phone is an
award-winning next
generation IP network
telephone based on industry
open standards. Built upon
innovative technology,
Grandstream IP Phone
features market leading
superb sound quality and
rich functionalities at
ultra-affordable price.
Grandstream Budgetone GS-101
VoIP Business Phone SIP
$54.95
Grandstream GS-101 Features:
Support SARP/RARP, ICMP,
DNS, DHCP, NTP, TFTP
protocols
Support NAT traversal
via STUN & symmetric RTP
Interoperable with
various 3rd party SIP
end user device,
Proxy/Registrar/Server,
and gateway products
Advanced Digital Signal
Processing (DSP) to
ensure superb
hi-fidelity audio
quality
Advanced and patent
pending adaptive jitter
buffer control, packet
delay & loss concealment
technology
Support popular vocoders
including G.723.1
(5.3K/6.3K), G.729A/B,
G.711 (a-law and u-law),
G.726, G.728, and
wide-band G.722 (Model
102D). Dynamic
negotiation of codec and
voice payload length
Support standard voice
features such as Caller
ID Display or Block,
Call Waiting, Hold,
TransfForward, FLASH,
in-band and out-of-band
DTMF (RFC2833), Dial
Plans, off-hook auto
dial, configurable
emergency dialing (e.g.,
911), early dial,
click-to-dial
Support 3-way
conferencing (Model
102D), full duplex
hands-fredomain acoustic
echo cancellation
(pending), redial, call
log, volume control,
voice mail with
indicator, downloadable
ring tone (pending)
Support Silence
Suppression, VAD (Voice
Activity Detection), CNG
(Comfort Noise
Generation), Line Echo
Cancellation (G.168),
and AGC (Automatic Gain
Control)
Support DIGEST
authentication and
encryption using MD5 and
MD5-sess.
Provide easy
configuration thru
manual operation (phone
keypad and Web
interface) or
personalized automated
provisioning via central
configuration file for
mass deployment.
Support for Layer 2
(802.1Q VLAN, 802.1p)
and Layer 3 QoS (ToS,
DiffServ, MPLS)
NAT-friendly remote
software upgrade
capability (via tftp)
even from behind
firewalls/NATs.
Support for fail-over
SIP server and DNS
server (pending)
The
Grandstream GS-101 has one
Ethernet port.
Grandstream Budgetone GS-102
$59.95
The
Grandstream Budgetone GS-102
IP Phone is an award-winning
next generation IP network
telephone based on industry
open standards. Built upon
innovative technology,
Grandstream IP Phone
features market leading
superb sound quality and
rich functionalities at
ultra-affordable price.
Grandstream GS-102 Features:
Support SARP/RARP, ICMP,
DNS, DHCP, NTP, TFTP
protocols
Support NAT traversal
via STUN & symmetric RTP
Interoperable with
various 3rd party SIP
end user device,
Proxy/Registrar/Server,
and gateway products
Advanced Digital Signal
Processing (DSP) to
ensure superb
hi-fidelity audio
quality
Advanced and patent
pending adaptive jitter
buffer control, packet
delay & loss concealment
technology
Support popular vocoders
including G.723.1
(5.3K/6.3K), G.729A/B,
G.711 (a-law and u-law),
G.726, G.728. Dynamic
negotiation of codec and
voice payload length
Support standard voice
features such as Caller
ID Display or Block,
Call Waiting, Hold,
TransfForward, FLASH,
in-band and out-of-band
DTMF (RFC2833), Dial
Plans, off-hook auto
dial, configurable
emergency dialing (e.g.,
911), early dial,
click-to-dial
Support 3-way
conferencing (Model
102D), full duplex
hands-fredomain acoustic
echo cancellation
(pending), redial, call
log, volume control,
voice mail with
indicator, downloadable
ring tone (pending)
Support Silence
Suppression, VAD (Voice
Activity Detection), CNG
(Comfort Noise
Generation), Line Echo
Cancellation (G.168),
and AGC (Automatic Gain
Control)
Support DIGEST
authentication and
encryption using MD5 and
MD5-sess.
Provide easy
configuration thru
manual operation (phone
keypad and Web
interface) or
personalized automated
provisioning via central
configuration file for
mass deployment.
Support for Layer 2
(802.1Q VLAN, 802.1p)
and Layer 3 QoS (ToS,
DiffServ, MPLS)
NAT-friendly remote
software upgrade
capability (via tftp)
even from behind
firewalls/NATs.
Support for fail-over
SIP server and DNS
server (pending) The
Grandstream GS-102 has two
Ethernet ports.
Linksys
SPA841 2-4 Line SIP Phone
$64.95
The
Linksys SPA841 business
phone is the premier entrant
in an IP telephone product
line from Sipura Technology
that leverages the global
success of Sipura and the
rapid adoption of VoIP
technology in worldwide VoIP
deployments.
Linksys
SPA 841 SIP VoIP Phone
The
Linksys SPA841 comes
standard with 2 line
appearances and can be
upgraded to 4 line
appearances for an
additional $30.00
The Sipura
SPA841 IP telephone can be
configured as a two (2) line
or, via a simple software
upgrade, a four (4) line
full featured business phone
with pixel based graphical
display, speakerphone and
headset port. Stylish and
functional in design, the
SPA-841 can be used in
residential, SOHO,
enterprise and small to
medium business service
offerings including IP PBX,
hosted IP telephony and IP
Centrex. The SPA841
leverages Sipuras market
leading technology and
manufacturing proficiency to
deliver an upgradeable, high
quality IP telephone
unparalleled in value and
support.
Interoperability and SIP
Based Feature Set
Experienced telephony
service network operators
recognize that technical
acumen coupled with
responsive pre and post
sales support are critical
for a successful deployment.
Sipuras extensive
interoperability track
record with VoIP industry
infrastructure leaders via
standards based and platform
specific SIP signaling
enable network providers to
quickly roll-out
competitive, feature rich
service offerings. Armed
with a mature feature set
with hundreds of
programmable parameters, the
SPA-841 utilizes the call
processing functionality
found in existing Sipura
products. Sipura VoIP
endpoint solutions solve
many time-to-market
requirements of enterprise
users and leverage the
advantages of an IP network
like easy acceptance of
station moves, presence and
shared line appearances
across geographically
separate locations
Linksys
SPA941 SIP Phone
$149.95
Stylish
and functional in design,
the Linksys SPA941 VoIP
Phone is ideal for a
residence or business
using a hosted IP telephony
service, an IP PBX, or a
large scale IP Centrex
deployment. The SPA941
leverages industry leading
VoIP technology from Linksys
to deliver an upgradeable
high quality IP Phone that
is unparalleled in features,
value, and support.
Linksys
SPA941 SIP screenphone with
(2) Line appearances,
expandable to (4)
Linksys
SPA941 Standard features on
the Linksys SPA941 include
two active lines, a high
resolution graphical
display, speakerphone, and a
2.5 mm head-set port. With a
simple software update, the
Linksys SPA941 is
upgradeable to a four line
phone. Each line can be
independently configured to
use a unique phone number
(or extension), or can be
configured to use a shared
number that is assigned to
multiple phones.
Linksys
SPA941 Comprehensive
Interoperability and SIP
Based Feature Set
Based on
the SIP standard, the
Linksys SPA941 has been
tested to ensure
comprehensive
interoperability with
equipment from VoIP
infrastructure leaders
enabling service providers
to quickly roll-out
competitive, feature rich
services to their customers.
With hundreds of features
and configurable service
parameters, the SPA941
addresses the requirements
of traditional business
users while leveraging the
advantages of IP telephony.
Features such as easy
station moves, presence, and
shared line appearances
(across local and
geographically dispersed
locations) are just some of
the many advantages of the
Linksys SPA941.
Carrier-Grade Security,
Provisioning, and Management
The SPA941 uses standard
encryption protocols to
provide secure remote
provisioning and unobtrusive
in-service software
upgrades. Linksys secure
remote provisioning tools
include detailed performance
measurement and
troubleshooting features,
enabling network providers
to deliver high quality
support to their
subscribers. Remote
provisioning also saves
service providers the hassle
and expense of managing,
pre-loading, and
re-configuring customer
premise equipment (CPE).
Linksys
SPA941 Hardware Features:
(1)
RJ-45 10BaseT Ethernet
Port
High
Quality, "Cisco/Linksys?"
Distinctive ID
Hi-Resolution Pixel
Based Display
Larger Display vs.
SPA841
128 x
64 vs. 128 x 48
Four
Line Keys
Four
Soft Keys
Solid
Handset
Headset Port 2.5mm
Full
Duplex Speakerphone
All SW
Features of SPA84x Including
. . .
Interoperability with
Asterisk and other SIP
based platforms
Excellent Voice Quality
Secure Calling via sRTP
Network Based Ring Tone
Support
Call
Transfer, DND,
Conferencing, Call FWD,
etc.
SIP B
and Bridged Line
Appearance Support
Remote Provisioning via
HTTPS, HTTP, TFTP
Linksys
WIP300 Wi-Fi IP Phone
802.11b/g w/ Color LCD
$229.95
The
Linksys WIP300-NA WiFi Phone
enables high-quality voice
over IP (VoIP) service
through a Wireless-G network
and high-speed Internet
connection. Connect at home,
your office, or at a public
hotspot, and make low-cost
phone calls through your
Internet Telephony Service
Provider. The WIP300 WiFi
phone operates in the 2.4GHz
band, supports IEEE802.11
b/g and the latest VoIP SIP
protocol.
The WIP300
Wireless-G IP Phone operates
in the 2.4GHz band, supports
802.11g and the latest VoIP
SIP protocols. The large,
full-color high resolution
display features an
intuitive user interface
enabling users to easily and
quickly configure the
handset using Secure Easy
Setup (SES).
SES is a
fast, secure way of
connecting the WIP300
Wireless-G IP Phone to a
Linksys Wireless-G broadband
router. Just press the
associated SES button on
both devices and your
connection will
automatically be configured
and secured with a custom
SSID using powerful WPA (Wi-Fi
Protected Access)
encryption. That’s it!
Within seconds you have
successfully set up a secure
connection.
Handset
features include caller ID,
call forwarding, call
transfer, stores call
history and can save 200
phone book entries.
Personalize your phone with
a selection of ringtones and
choose different wallpaper
images that reflects your
style.
Get the
value of low-cost VoIP
service with the convenience
of Wireless-G connectivity
with the Wireless-G IP Phone
from Linksys.
Linksys
WIP300 Additional Features
include:
Pixel-based
display—Provides
intuitive access to
calling features
UTStarCom
F1000 G WIFI VOIP Phone WLAN
802.11B/G
134.95
UTStarcom
F1000
WIFI Mobile Handset is SIP based
WLAN phone that is easily
integrated with most SIP based
IP PBX systems.
UTStarcom
F1000 G WIFI VOIP Phone WLAN
Wireless 802.11B
The
latest version of the UTStarcom
F1000 handset supports 802.11G
in addition to 802.11 B.
UTStarcom
F1000 Key Features:
Bar Type
Design
802.11b/g
Wireless
SIP
(Session Initiation
Protocol) Protocol
DHCP
3-Way
Calling
Call
Waiting
Call
Transfer
Call
Forwarding
Call Hold
/ Resume
802.1X
Authentication
UTStarcom
F1000 Voice Specifications
Codec
G.711, G.729a/b
Frequency
Band 2.4GHz
Transmission Output 20mW
Comfort
Noise Generation (CNG)
Voice
Activity Detection (VAD)
Adaptive
Jitter Buffer
Echo
Cancellation
UTStarcom
F1000 IP Protocol
RTP
(Real-Time Transfer
Protocol) RFC 1889 / RTCP FC
1890
SDP
(Session Description
Protocol) RFC 2327
SAP
(Session Announcement
Protocol)
SIP RFC
3261, 3264, and 3515
DHCP
DTMF RFC
2833
TFTP
802.1X
Authentication
PPPoE
Authentication
64 and
128bit Wired Equivalent
Privacy (WEP)
UTStarcom
F1000 Technical
Weight
111g
Charger
Input 100~240VAC: 50~60 Hz
120mA
4 Hour
Talk Time
Standby
Time - 30-50 Hours
E911 service requires that customer provide notification to Phone
Technology if Telephone Adaptor is moved to a different address. Phone
Technology does not support use of Phone Technology Residential or Business
Voice Services as a connection between customer's alarm system and the
central monitoring services for all Fire Alarms and High Security Grade-A
type business security alarm systems. Customer must maintain alternate phone
connection for such connections.