Installation and Operation Manual

Table Of Contents
TD 92579EN
10 April 2015 / Ver. N
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 7.2.X)
149
Appendix D: Load Balancing
Load balancing can be used in an IP-DECT system when the number of handsets exceeds
what an IP-PBX is able to register.
When load balancing the traffic is distributed over several IP-PBXs which can be done in
two ways using:
fixed connections for users on each Master towards multiple IP-PBXs.
dynamic connection for users on each Master towards IP-PBX network using DNS
services.
D.1 Load Balancing Using Fixed Connection Towards IP-PBXs
When the number of users exceeds what an IP-PBX is able to register, you can load
balance using several IP-PBXs where each Master in the IP-DECT system is connected to a
fixed IP-PBX.
Note: For redundancy, an alternative gatekeeper/proxy should always be used.
Figure 17. Load balancing using fixed connection towards IP-PBXs.
1 Select DECT > Master.
2 In the drop-down list, select "SIP" protocol.
3 Enter the IP address, domain name or host name and optionally port of proxy (e.g.
proxy1.ascom-rd.com:5060) to the SIP proxy (registrar) in the Proxy text field.
4 To get redundancy: Depending on how many alternative SIP proxys that are used,
do as follows:
In the Alt. Proxy 1 text field: Enter the IP address, domain name or host name and
optionally port of proxy (e.g. proxy2.ascom-rd.com:5060) to the alternative SIP
proxy (registrar).
In the Alt. Proxy 2 text field: Enter the IP address or host name and optionally port
of proxy (e.g. proxy3.ascom-rd.com:5060) to the alternative SIP proxy (registrar).
IP-PBX
Master 2
Radio
Master 0
Pari Master
Master 1
IP-PBX IP-PBX