User Guide

Voice Gateway / Pocket Voice Gateway 45
7.2 MGCP Notes
MGCP is a client-server connection protocol of VoIP technology. In an MGCP
environment, it is compulsory for a server (named Call Agent or Call Man-
ager) to manage and control all MGCP clients. Different Call Agents may
employ different MGCP profiles, which define the procedures and param-
eters of a VoIP phone call.
Voice Gateway / Pocket Voice Gateway can support RFC standard profiles
(RFC2705, MGCP 1.0), NCS standard profile (Packet Cable), and some
proprietary profile (MGCP 0.1, NCS 1.0).
While the operator will set up the call agent with IP phone information,
users have to set up the Voice Gateway with a valid IP address, the IP ad-
dress (or domain name) of the Call Agents, and the corresponding MGCP
profile.
In an MGCP environment, all clients need to use E.164 number to start the
connection. The mapping of an E.164 number and IP address is handled by
the MGCP Call Agent, then a user can call a peer VoIP terminal by the
E.164 number. You can simply make a phone call as in standard telephones.
For example, if you want to dial to 7123456 , you press 7123456 to make
the phone call.
7.3 Application Examples
The voice gateways can be configured to perform many roles to support
various demands from customers. Here, it presents some application ex-
amples for customer to know how to configure the voice gateway.
7.3.1 VoIP Voice Gateway to VoIP Networks using IP address
The first simple example shows the use of the Ethernet WAN port to con-
nect to a VoIP network. The other LAN port connects to another computer.
One or more telephone directly connects to the FXS interfaces (P1, P2 …
or Phone). This example provides you simple VoIP phone to another VoIP
phone (VoIP to VoIP).
7. System Operation