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PBX installation
©2001 Nokia Mobile Phones. All rights reserved. 25
Functionality in extension mode
Outgoing call on the extension line, mode A
1 The user keys in the number of the extension where the Nokia 22 is connect-
ed.
2 The terminal answers the call and provides a dial tone.
3 The user keys in the number of the B subscriber.
4 The terminal establishes the call.
Outgoing call on the extension line, mode B
1 The user keys in the number of the extension where the Nokia 22 is connect-
ed.
2 The terminal answers the call and provides silence.
3 The user keys in the number of the B subscriber.
4 The terminal establishes the call.
The terminal can be configured to change or add a mobile prefix to the number.
Thus, it can provide for example cost-effective routing. For further information
about the AAC, see “ Automatic Area Code (AAC) and routing” on page 16.
Note: Some exceptions like emergency numbers have to be taken into
account. For details, see “8. Security information” on page 43.
Incoming call on the extension line, mode A
1 The Nokia 22 answers the incoming call and opens the extension line.
2 The PBX provides a dial tone.
3 The user enters an extension number or outgoing number.
4 The PBX routes the call as it would come from an extension telephone.
Incoming call on the extension line, mode B
1 The Nokia 22 answers the incoming call and opens the extension line.
2 The terminal sends a pre-defined number to the PBX extension.
3 The B subscriber answers.