Configuration
56
Media Key .....................
(RTP)
With the media key voice transfer can be en-
crypted (RTP) Leave the field empty in case you do
not have a media key.
Server Type.................. Select "common", in case your SIP provider is not
listed here.
see also "Automatic server detection"
DTMF Mode ................. Determines the mode used to transfer digits while
having a connection
Select "DTMF Relay" (inband audio) in order to be
able to use system functionality at a tiptel.com tele-
phone system.
Select "DTMF RFC2833" or "DTMF SIP INFO" de-
pending on your application.
RFC Protocol Edition ... Today's standard is RFC3261. Select RFC2543 in
case you wish to connect to a SIP telephone with
standard SIP 1.0.
Forward Type............... Chose between "off", "always, "busy", and "no an-
swer". Incoming calls will the be forwarded to the
following telephone number depending on the set-
ting chosen.
When selecting "no answer" the delay time programmed under "
Call Service"
(see page 36) applies.
Forward Phone Number For call forwarding. Enter the target number in the
same way as if you would enter it for an outgoing
call.
Call forwarding will be carried out via the same SIP
account. It is not possible to use another SIP ac-
count for call forwarding.
Subscribe......................
Expire Time
Timeout / Expires - value for subscribe, see "Acti-
vate Subscribe"
Enable PRACK ............. Activates provisional acknowledge.