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)
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5 Select type of resynchronization action to perform at reference sync failure, a
manual or an automatic (scheduled) one.
6 Click "OK".
4.6 VoIP
This section only applies if the SIP protocol is used in the system.
4.6.1 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".
4.6.2 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".
4.6.3 Use local contact port as source port for TCP and 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".
4.6.4 Session Timer (initial value)
If set, a keep-alive mechanism will be used to detect if a call is still valid as defined by rfc
4028. This is normally handled by the IP-PBX and then not necessary to be defined here.
1 Select VoIP > SIP.
2 To enable, enter a time (sec.) in the "(Session Timer initial value)" field.
3 Click "OK".