TD 92579EN
15 February 2012 / Ver. H
Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 5.0.x)
92
1
Select DECT > System.
Note: To access the System tab, the Master mode has to be activated, see
8.5.13
Select Mode
on page 94.
2
Choose the applicable coder in the Coder drop-down list.
NOTE: The G726-32 coder is not supported by SIP.
3
Enter the sample time in milliseconds in the Frame text field.
4
Choose Exclusive enabled or disabled by selecting/clearing the Exclusive check box.
5
Choose Silence Compression enabled or disabled by selecting/clearing the SC check
box.
6
Click "OK".
8.5.11 Secure RTP
This option makes it possible to encrypt media streams. The encryption is activated if the
SRTP is also enabled in the IP-PBX. For additional privacy it is recommended to use the
encrypted signalling protocol (SIPS) as well to hide the exchange of the SRTP keys.
Note:
If SRTP is enabled one Radio can handle maximum 5 calls for IPBS1 and 40 calls for
IPBL (including relayed calls) at the same time. For this reason and because of the high
load on the CPU when SRTP is used, it is recommended to deactivate the Radio in the
Master.
1
Select DECT > System.
Note: To access the System tab, the Master mode has to be activated, see
8.5.13
Select Mode
on page 94.
2
To enable SRTP: Select in the Secure RTP drop-down list a cryptographic suite. The
numbers in the list refer to key-length/sha1 hash-length.
To disable SRTP: Select in the Secure RTP drop-down list the empty row at top.
3
Click "OK".
If a call is successfully encrypted a lock icon appears next to the ongoing call description in
the Traffic > Master Calls section.
8.5.12 Configure Supplementary Services
The supplementary services determine how to handle a call if for example busy or not
answered by the user.
1
Select DECT > Suppl. Serv.
NOTE: To access the
Suppl. Serv.
tab, the Master mode has to be activated, see
8.5.13
Select Mode
on page 94.
2
Select the
Enable Supplementary Services
check box to activate the supplementary
services below. The default Activate and Deactivate feature codes are preset.
Note:
To disable a specific service, select the Disable check box in front.
Feature
Description
Call Forwarding Unconditional
Forwards incoming calls to a given number
in all cases
Call Forwarding Busy
Forwards incoming calls to a given number
if the handset is busy
