Bosch GSM 900 用户手册

You can set up call barring for different types of
outgoing and incoming calls to restrict the use of
your phone. 

You have to activate the type of call barring you
wish to set up. You are asked to specify whether
you want the call barring to apply for all ser-
vices, speech, data services, fax services or
message services (SMS).

When setting up or cancelling any call barring,
you will be asked to enter your 4-digit password
provided by your network operator. 

You can always see the status of the actually 
activated call barring by selecting  

. 

Select  

if you want to bar all out-

going calls. Select  

if you

want to bar international calls only. Select  

if you want outgoing calls to be 

barred when you are connected to a foreign 
network – this still leaves you the possibility of
making calls to your home country.

Calls to Emergency Services (see page 11) can still
be made even if all outgoing calls are barred. 

1. Press  

2. Select  

by pressing  

3. Select  

using 

and confirm by pressing  

4. Select using 

–

–

–

–

–

(call barrings)

5. Confirm your choice by pressing  

If you want to activate call barring for

just follow the procedure described above 
giving you the same options. 

Call barring of incoming calls is activated and
cancelled in exactly the same way covering the
sub menus  

User Guide 738/718 GB  29/04/99 9:59  Side 28