Operating instructions

Table Of Contents
Operation
Not all of the features described here may be implemented in the standard ISDN connection supplied by your net
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work service provider. Contact your service provider to determine which features come standard with your ISDN ac
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cess and which ones you must apply for separately.
If your phone is set for »Automatic line access« you must first press the * key when you lift the handset b before be
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ginning any internal call procedures. The symbol b is highlighted in color, as shown in the example below, for the
corresponding performance feature.
bt g
Lift up handset Making internal calls Conduct your call
Making phone calls
Some terminal devices use their own special procedures for the functions described in the following. Refer to the ope
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rating instructions for the terminal device being used for detailed information.
Only telephone connections, i. e. calls between subscribers, are presented in the following usage procedures as exam
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ples. For analog telephones, these functions are only described for tone dialing terminal devices equipped with a
flash key. The tones and signals described below are heard when using analog telephones. These tones may be diffe
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rent for ISDN telephones and analog telephones which generate their own dial tones. Other information may also be
shown in the display of these telephones.
Attention:
Please note: ISDN terminal devices connected to the ISDN connection may not have the same signals, ringing cycles
or operating procedures as the internal terminal devices for the PABX system.
Attention:
When you enter the number for dialing via an SIP provider, dialing is not performed until around 5 seconds after
the last digit has been entered. Dialing is performed immediately when you press the # key after entering the num-
ber. In this case, the terminal device must also be capable of dialing into the phone system with the #.
Making outside calls
Making external calls without direct exchange line access
b0 t ga
Lift up handset Dial line access digit Dial external number Conduct your call Terminate your call
Attention:
If you hear the busy signal after dialing the first 0 your telephone either does not have authorization for making ex
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ternal calls, or the external ISDN connection is busy.
Making outside calls with direct exchange line access
btga
Lift up handset Dial external number Conduct your call Terminate your call
Operation Making phone calls
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