User's Manual

Table Of Contents
TD 92579EN
15 February 2012 / Ver. H
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 5.0.x)
102
It is possible to configure the Sync Master to synchronize to a reference base station
(another or same DECT system). In this case the Sync Master will try to synchronize to the
reference system if the reference system is found but it will not require the reference
system to be available. The Sync Master will operate even though the reference system is
not available. During startup the Master will prefer to synchronize to a slave base in the
same system before synchronizing to the reference base station.
Configure Sync Master as follows:
1 Select DECT > Air Sync.
2 Select "Master" in the Sync Mode drop-down list.
3 To synchronize the sync master to a reference base station, enter the reference base
station in the Reference RFPI text field. Enter an alternative reference base station in
the Alternative reference RFPI text field (optional).
4 Enter a region ID between 0 and 63 in the Sync Region text field.
5 Select type of resynchronization action to perform at reference sync failure, a
manual or an automatic (scheduled) one.
6 Click "OK".
8.6 VoIP
This section only applies if the SIP protocol is used in the system.
8.6.1 Add instance id to the user registration with the IP-PBX
This might simplify administration with some IP-PBXs.
1 Select VoIP > SIP.
2 To enable, select the "Add instance id to the user registration with the IP-PBX"
check box corresponding to the SIP protocol that is used.
3 Click "OK".
8.6.2 IP-PBX supports redirection of registration when registered to alternative
proxy
When the primary proxy is down and an alternative proxy is in use, the IP-PBX will redirect
the registration to the primary proxy when available again. IP-DECT will not make any
attempts to contact the primary proxy as long as the alternative proxy is available.
1 Select VoIP > SIP.
2 To enable, select the "IP-PBX supports redirection of registration when registered to
alternative proxy" check box corresponding to the SIP protocol that is used.
3 Click "OK".
8.6.3 Use local contact port as source port for TCP/TLS connections
Instead of having a dynamic/ephemeral source port for the persistent TCP/TLS connection,
the local contact port of the corresponding phone can be used instead (required by some
IP-PBXs.).
1 Select VoIP > SIP.
2 Select the SIPS check box.
3 Click "OK".