25
Making calls
CX 253i / SWZ PTT en / A31008-X353-P100-1-19 / telephony.fm / 03.12.2007
Defining the send MSN for the next call
Even if you have defined an individual send MSN for the base station (page 96), you can
select another MSN as the send MSN before each call, e.g. for individual recording of
charges.
By factory default,
MSN next call
is not activated for an MSN.
You can set up your base station so that after lifting the receiver or pressing the
handsfree key
d
a list of all available send MSNs is displayed (page 96).
Callback when the number is busy (CCBS)
Precondition:
The exchange supports this service.
Callback on busy – CCBS (Completion of calls to busy subscriber)
The user you are calling is currently making a call. Automatic callback saves you making
repeated attempts to dial the number.
Activating callback
The number you are calling is busy or your call is not answered:
Accepting a callback
The base station rings with a special ringer tone and the display shows the callback
number.
i
Open the menu.
s
Set base
Select the menu item and confirm.
s
Call preparat.
Select the menu item and confirm.
s
MSN next call
Select the menu item and confirm.
s
MSN
Select the required MSN and confirm
(
‰
= activated).
The next call uses this MSN.
j
Hold
down (back to idle status).
OK
OK
OK
OK
i
◆
The temporary send MSN is transferred to the person called as phone
number information.
◆
To make this function easier to use, you can also set one of the
function keys accordingly (page 115).
[RRRRRRRRRRRRRRRRRRRRRRRRRR]
CALLBCK
Press the display key.
Wait for confirmation from the exchange.
c
Lift the receiver. The connection is established.