Specifications

TD 92326GB
2009-03-10 / Ver. E
Installation and Operation Manual
VoIP Gateway
128
2 Standby VoIP Gateway:
• Set the PBX mode to “Standby”, see 11.1 General – Activation of the PBX
Application on page 62.
• Enter the same user name and password as set in the LDAP Server on the Master
VoIP Gateway, see 8.3 Replicator – Configuration on page 43.
3 Connect PRI2 on the Master VoIP Gateway to PRI1 on the Standby VoIP Gateway.
4 If two PRIs are used, connect PRI4 on the master VoIP Gateway to PRI3 on the
Standby VoIP Gateway.
The Standby VoIP Gateway will now have a copy of the PBX Application in the Master VoIP
Gateway.
18.1.1 Redundancy Test
When the installation is finished and the configuration is working, test the redundancy.
1 Remove the power from the Master VoIP Gateway.
2 Check that the relay on the Master VoIP Gateway is activated.
3 Connect a call to make sure that the Standby VoIP Gateway has taken over.
18.2 Multiple VoIP Gateway Installation
A configuration with multiple VoIP Gateways is used for installations above 300 VoIP
clients (@150mE, 1% blocking and 60 channels) and for load balancing calls to and from
the PBX.
In this case only one of the VoIP Gateways has the PBX Application running, the other VoIP
Gateways are only ISDN- VoIP gateways. See figure 117 below.
Figure 117. Multiple VoIP Gateways
License requirements:
• 1 PRI license per 30 voice channels (max. 2 PRI licenses per gateway)
• 1 Relay Gateway license for each additional VoIP Gateway (the local VoIP Gateway is
excluded)
VoIP Gateway 1
VoIP Gateway 2
LAN
VoIP Gateway ....n
PRI1
PRI3
PBX Application
PRI1
PRI3
PRI1
PRI3
105