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3. Quick Installation
3.1 Quick Start
1. Plug in the Ethernet Cable, Null Modem cable and switch on the device to begin the configuration
procedure.
2. Configure the IP Address, subnet mask, Default Gateway to make the device reachable from the
network.
3. Configure the device’s prefix .
4. Decide the role (master or slave) of the device and configure the Group ID.
5. Add the MAC address of the slave that will join the group to the master.
6. Configure the IP address of the master gateway to the slave device.
7. Restart the device so that the configuration changes can take effect.
3.2 Basic Topology
The PBX VoIP gateway is based on master/slave architecture, which means the gateway will work with a
group of slave gateways as a master gateway or join a group that is registered on a particular master
gateway. The master gateway is the core of all common and control information in the same group.
The master keeps a list of all the members of the group, while keeping the whole group’s
information updated by polling each slave device with routing information and group table. As a
result of this function, when a new device joins the group, it will receive the entire group’s
information from the master. The other members in the group will then also be updated.
A new slave must join the group by synchronizing the group information with the master device.
Unless this step is completed, the slave cannot be used to make phone calls to any other devices.
After a slave joins the group, it will receive a member list of the entire local group. The device can
now make calls to other slave devices even if the master device loses its connection (the Ready
LED light is off). However if the master device has lost its connection, it will be unable to receive
new slave updates .
Each device in the group will have a common prefix number as an ID for the entire group.
The Master also play the role as Real IP Resolver for the Salves that work under NAT environment
to find its real IP address and port number in the public IP network.
The PBX VoIP gateway is designed to work over an IP network. Before it connects to an IP network, you
must assign the Gateway an IP address. Like the regular settings of an IP network, you also need to
configure the subnet mask and the default gateway. The different aspects in configuring the master and
slaves begin after the initial IP address configuration has been completed.