Siemens 70isdn User Manual

Page 70

Convenient and secure telephone communication

kap09.fm5

Profiset 70isdn, GB: A30853-X300-B501-3-7619

20.5.99

Charge display

You must apply to your local network provider for this fea-

ture (premium rate access). There are two methods of

transferring call charge information:
1. Call charge information is only transferred at the end

of the call. If you program a key for displaying charges,

you can extend the display duration while the call

charge information is being displayed.

2. Call charge information displayed during and at the

end of a call. The call charge information is automati-

cally displayed during a call for approx. 3.5 seconds

for each new call charge unit. If you program a key for

displaying charges, you can query charges at any

time.

Tracing a call (MCID)

You can find out the origin of a call, in order for example

to identify a malicious caller. You must apply to your local

network provider for this feature. Your telephone must be

configured accordingly, as otherwise the service will be

rejected with the advisory message "Identification not

possible".

You can use this function in the following situations:

●

During a call.

●

Call signal is heard, you lift the handset, the caller has

already hung up. You have 20 seconds after the caller

replaced the handset in which to initiate call tracing.

●

At the end of the call. The anonymous caller hangs

up. You have 30 seconds in which to initiate call trac-

ing.

On no account must you replace the handset until the

identification is concluded.

You can initiate caller identification if you have pro-

grammed a "Trace" function (➔ page 42).

Press the "Charge display" key.

Charge display

The "Charge display" key can be pressed to que-

ry the charges even if "Charge display off"

(➔ page 23) has been programmed.

Lift the handset.