Multitech VOIP Gateways Service Manual

Voice/Fax over IP Gateways

The Multi-Tech MultiVOIP provides toll-free voice and fax communications

over the Internet or Intranet. By integrating voice and fax into your existing
data network, you can realize substantial savings on inter-office long distance
toll charges. The MultiVOIP family is available in analog and digital models
ranging from two to 60 ports. All MultiVOIP products connect directly to
phones, fax machines, key systems, PSTN lines, or a PBX to provide real­time, toll-quality voice connections to any office on your VOIP network.

Features

 2-, 4-, 8- analog ports or 24/30 (expandable to 48/60) digital ports for

communication over an existing IP network or the Internet

Benefits

Toll bypass voice/fax communications

PSTN voice quality

Connects directly to phones, fax or PBX

Turnkey solution

Toll-free Voice/Fax
Communication over
the Internet or
Intranet

 Ethernet connectivity and full IP compatibility with existing routers and

WAN infrastructure

 FXS/FXO and E&M connectors on each channel for direct analog connection

to phones, key telephones, PBX extensions, PSTN lines or PBX trunks

 Digital MultiVOIP connects directly to PBX or PSTN line via T1/E1 or PRI

 Supports H.323 or SIP for sending voice over the Internet

 PSTN fail-over automatically routes calls over the PSTN network if the IP

network is down

 Supports H.450 supplementary services to provide for call transfer, call

forwarding, call hold, call waiting and name identification

 Voice compression to 5.3K bps per call

 T.38 real-time fax relay for interoperability among other VOIP equipment

 Modem relay supports modem connections over the IP network (up to

14.4K bps)

 Configuration and management using a Web browser or Windows

 Models available with integrated gatekeeper for centralized phone book

management

 Models with integrated gatekeeper extend the call features of a centralized

Avaya media server, running MultiVantage software, and provide local office
survivalitiy to small branch offices of large corporations

 Two-year warranty

MultiVOIP

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Highlights

MultiVOIP Applications. MultiVOIP is specifically

targeted at businesses looking to reduce toll charges
between frequently called sites. MultiVOIP is a voice
over IP gateway that integrates seamlessly into your
data network and operates alongside existing PBXs, or
other phone equipment to simply extend voice
capabilities to remote locations. It is designed to help
you maximize investments you’ve already made in
your data and voice network infrastructure.

Easy Integration. With MultiVOIP, you avoid the hassle

and expense of replacing your existing routers, WAN
connections or phone system required by other VOIP
solutions. MultiVOIP simply plugs into your Ethernet
network. Neither your phone service or network is
placed at risk. Minimum requirements: Ethernet
network, WAN connection, IP addresses.

Save Thousands of Dollars Each Month. MultiVOIP

can save your company substantial amounts in long
distance charges. Even if your company uses one of the
most inexpensive calling plans, a MultiVOIP network
can quickly return your investment and begin paying
you back.

Award-winning Voice Quality. With MultiVOIP, you’ll

experience consistent toll-quality voice connections.
Using the Perceptual Speech Quality Measurement
(PSQM), Internet Telephony magazine found that
MultiVOIP delivered exceptional voice quality. In fact,
MultiVOIP outranked the competition.

PSQM SCORE S

The lower the better

Intolerable

Tolerable

Good

Exceptional

6.0

5.0

4.0

3.0

4.20Memotecs CX950

3.64Inter-Tels InterPrise400

5.64Nueras Access Plus F50ip

4.21SOSs Sovereign

2.50MultiVOIP

2.0

1.0

An independent product review conducted by

Internet Telephony magazine (March 1999)

Interoperability. MultiVOIP utilizes the H.323 and SIP

protocols to provide complete interoperability with
other Internet telephony solutions. The inbound IP call
protocol is automatically detected and the voice
channel is dynamically configured to match. The
outbound IP call protocol is configured with the phone
number allowing you the flexibility to call H.323 or SIP
devices from the same port. In addition, MultiVOIP
also supports T.38 real-time fax relay interoperability
among other VOIP equipment.

PSTN Fail-over. PSTN fail-over allows MultiVOIP to

automatically route calls over the PSTN network
when the IP network is down. MultiVOIP continually
checks if the LAN/WAN is down. If it detects a
problem, MultiVOIP switches to “survivability mode”
transparently routing all calls over PSTN lines
connected to the MultiVOIP gateway. MultiVOIP
continues to monitor the connection and automatically
switches back to the LAN/WAN once the problem is
corrected.

Advanced Speech Technologies. MultiVOIP supports

the Differentiated Services (DiffServ) Quality of
Service (QoS) protocol which sets priorities for voice
and fax traffic and allows transparent delivery. DiffServ
helps move time-sensitive voice traffic across even
low-bandwidth WAN connections, like 56K and ISDN,
with the priority and quality required by voice. Other
features such as adaptive echo cancellation, forward
error correction, bad frame interpolation, tunable
latency and dynamic jitter buffers, further enhance
voice quality.