Avaya Communication Manager IP DECT Installation, Administration And Maintenance Manual page 19

An IP DECT installation is more reliable if a IP DECT base station can receive the signal from
more than only one IP DECT base station, because the other signals are also used for
synchronisation.
R 101
R 101
The synch-over-air solution is very reliable, because all existing redundant paths are used for
synchronisation. Thus, hardware tolerances have only very little influence. No IP DECT base
station has a key position. Example: If the Initial Master does not start up, another IP DECT
base station will be chosen by the ADMM.
Only unfavourable setups without redundant synchronisation paths can cause problems.
Sometimes IP DECT base stations do not need to be synchronized, e.g. if they are in different
buildings. These IP DECT base stations can be put into different clusters. IP DECT base
stations in different clusters will not be synchronised with each other. Different cluster start up
independent at the same time.
Unreliable Installation
R 102 R 103
R 111 R 110 R 109 R 108
Reliable Installation
R 102 R 103
R 111 R 110 R 109 R 108
IP DECT base station Synchronisation
R 104 R 105
Don't
R 107
R 104 R 105
R 107
R 106
R 106
Issue 1 August 2006 19