TD 92579EN
15 February 2012 / Ver. H
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 5.0.x)
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If you in step 2 selected "SIP" protocol, enable or disable the following options in
the SIP Interoperability Settings section:
Registration time-to-live
This is the Expires-header in the REGISTER message. The default is 120 seconds.
To enable this option, enter a value specified in seconds in the "Registration time-
to-live" field. Note: Depending on the number of users, the entered value may
have to be increased. For example, for 500 users it is recommended to enter 300
seconds and for 1000 users it is recommended to enter 600 seconds. The SIP proxy
might respond to the REGISTER with a different value. Then the responded value
will be used for REGISTER refresh.
When secondary SIP proxy is in use, for example when the primary SIP proxy is
down, the configured time-to-live value is used to decide how often the Master will
try to reconnect to the primary SIP proxy.
Hold Signalling
Some IP-PBXs require special way of hold signalling. In the "Hold Signalling" list
field, select one of the following:
inactive: No media stream is sent or received.
sendonly: Media stream is sent only and not received.
sendonly with 0.0.0.0: Special case of sendonly where also the media IP address is
set to 0.0.0.0.
Hold before Transfer
If this option is enabled, the consultation call is put on hold before transfer. Some
IP-PBXs require this option so that both called parties are put on hold before the
transfer is carried out.
To enable this option, select the "Hold before Transfer" check box.
Accept Inbound Calls not Routed via Home Proxy
If this option is enabled it could be possible for inbound calls to bypass call
restrictions configured in the IP-PBX. If it is disabled a 305 Use Proxy response will
be sent.
To enable this option, select the "Accept inbound calls not routed via home proxy"
check box.
Register with number
If this option is enabled, number will be used for registrations towards the IP-PBX
instead of name. Name will be used for authentication.
To enable this option, select the "Register with number" check box.
KPML support
If this option is enabled, the DTMF digits are sent with the SIP signalling using the
Keypad Markup Language (KPML) method.With this method single DTMF digits can
also be sent during call setup to add digits to the callend number (overlap sending).
Enbloc dialing can then be unchecked. The IP-PBX must also support KPML.
To enable this option, select the KPML support check box.
Make sure that the Allow DTMF through RTP and the Send inband DTMF check
boxes are cleared.
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Click "OK".
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Reset in order to make the changes take effect, see
8.22
Reset
on page 138.
If you in step 2 selected the "SIPS" protocol the IPBS downloads a certificate from the IP-
PBX to ensure a secure transaction. The IPBS does not initially trust the certificate so it
must be added manually to the trust list of the IPBS. It is also possible that more than one
certificate is downloaded creating a certificate chain. The root CA certificate is at the end
of the chain which contains a self-signed signature and it is able to approve other
certificate requests. It is recommended to add the root CA certificate to the IPBS trust list.
