Multitech MultiVOIP 200 MVP200, User Manual

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8
MultiVOIP 200 User Guide
Typical Application
Before Voice Over IP (VOIP), i.e., voice over the Internet, a corporate office had a data connection to
the Internet and a voice connection to the public switched telephone network (PSTN). With VOIP, the
two networks can be tied together. To accomplish this, a MultiVOIP 200 is connected between the
public switched telephone network and the data network at the corporate office as shown in the
typical VOIP application in Figure 1-2. The remote branch office has two standard telephones
connected to the MultiVOIP and its Ethernet connection is plugged into the hub on the data network.
The data network is connected via a router to the Internet. In our typical application, a user at the
corporate office picks up a telephone connected to their local telephone switch (PBX) and calls the
remote branch office by dialing extension 4124 on the corporate MultiVOIP. When the second dial
tone is heard, the caller then dials extension 301 at the remote branch office. The remote branch
office telephone rings and a voice conservation takes place.
Remote Branch
Office
Internet/Intranet
IP Network
Corporate Office
HUB
P
B
X
PSTN Connection
(T1/E1, PRI, etc.)
Web Server
Workstation
Workstation
MultiVOIP
IP Address
201.22.122.118
Mask 255.255.255.128
LAN
ISP
PSTN
HUB
Workstation
Workstation
Analog Connections
Channel 1: FXO
Channel 2: FXO
512-4122
512-4123
Router (with Diffserv)
IP Address 201.22.122.1
Mask 255.255.255.128
MultiVOIP
IP Address 206.25.124.120
Mask 255.255.255.240
Router (with Diffserv)
IP Address 206.25.124.110
Mask 255.255.255.240
#301
Router Static IP
Address 209.96.211.90
101
4125
4124
102
Fax
Optional
H.323 Gatekeeper
IP Address 201.22.122.110
Port Number 1719
LAN
#302
Figure 1-2. Typical VOIP Application
To set up this VOIP network, a MultiVOIP 200 at the corporate office is connected between the data
network and the corporate telephone switch (PBX). To connect the MultiVOIP 200 to the data
network, an Ethernet cable is connected to the Ethernet port on the unit and the other end is plugged
into a hub on the data network. On the phone side, two phone cords are connected to two FXO jacks
on the back of the MultiVOIP 200 and attached to two station lines on the phone switch. These two
lines on the PBX occupy phone extensions 4124 and 4125.
To set up a MultiVOIP 200 at the remote branch office, the Ethernet jack on the MultiVOIP 200 is
connected to the hub and the two analog phones are connected by phone cords to the FXS jacks on
the MultiVOIP 200.
To configure a MultiVOIP 200, the COM port of a PC is connected to the Command port on the
MultiVOIP 200. Configuration software is loaded onto your PC and your unique LAN parameters must
be established. The configuration software is based on a standard Windows Graphical User
Interface (GUI) which simplifies your selection process to a single parameter group within a dialog
box. For example, your LAN IP parameters are contained on a single dialog box (see below). You
can configure your network IP address and mask for the MultiVOIP 200 and the gateway address for
the corporate router on the same dialog box.
For your corporate MultiVOIP, the Ethernet Frame Type is Type II, the IP Address is 201.22.122.118,
the Subnet Mask Address is 255.255.255.128, and the router Gateway Address is 201.22.122.1. The
remote branch office would have the same Frame Type, a LAN IP address of 206.25.124.120 and a