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)
65
12 To enable "DTMF through RTP Channel", select the DTMF through RTP channel
check box.
If enabled DTMF is negotiated according to RFC2833/4733, resulting in DTMF digits
b
eing sent as RTP payload directly to the other endpoint. If the other party does not
support RFC2833/4733, there will be fallback to DTMF over the signalling channel
(SIP INFO or H.245)
If disabled, the DTMF is always sent in the
signalling channel.
13 To enable "Short disconnect tone", select
the Short disconnect tone check box.
With this option enabled, a short tone (i.e. busy tone) is received when the other
party hangs up. If this option is
not enabled, busy tones will be received for a longer
period of time.
14 To determine how calls that are rejected by the user should be handled: Select
"
Busy", "Rejected", or "No user responding" in the Treat rejected calls as drop-
down list.
15 If you in step 2 selected "SIP" protocol, e
nable 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 signa
lling. 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 w
here 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 po
ssible 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"
ch
eck box.
Register with number
If this option is enabled, number will be use
d 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