User's Manual

Table Of Contents
TD 92579EN
15 October 2014 / Ver. M
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 7.2.X)
113
4.22 System Upgrade in System with Mobility Masters
Upgrade in the following order:
1 Upgrade all Standby Mobility Masters.
2 Upgrade all Mobility Masters.
3 Upgrade all of the remaining devices for each site by following the upgrade
se
quence under 4.15.2 Upgrading Sequence on page 106.
Figure 15. System with several Mobility Masters
Note: Ro
aming between sites is only possible when the sites have the same software
version.
4.23 Replacing Master Hardware in Multiple Master System
If a faulty Master IPBS is replaced with a new one, then the faulty Master must have been
disconnected from the system more than 2 minutes before the new Master is connected,
otherwise all the subscription data will be lost.
For information on how to load a configuration on the new Master, see 4.21.1 Update
Configuration on page 110.
4.24 Replacing Master Hardware in a System with a Crypto Master Active
If a faulty Master is replaced with a new one, then the faulty Master must be deleted in
the Mobility Master. The reason for deleting the replaced Master is that the Crypto Master
is operable only if all Masters, part of the Crypto Master hierarchy, are connected.
4.25 Replacing Mobility Master Hardware in a System with a Crypto Master
Active
If a faulty Mobility Master is replaced with a new one, then the faulty Mobility Master
must be deleted in the Crypto Master. The reason for deleting the replaced Mobility
Master is that the Crypto Master is operable only if all Mobility Masters, part of the Crypto
Master hierarchy, are connected.
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