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2.5. External lines
2.5.1. Types of lines
In this table the properties of the individual lines for the analogue external lines is
set up
Analogue external line
Name – a maximum 14-character name for the external line
Series – only an incoming external line which has not been tested for correct
working and cannot be entered upon in the outgoing direction
16 kHz – an external line with a 16 kHz impulse receiver
Private – a line connected to a private network, which is not charged.
Without authorisation – on this line a check of authorisation is not made
Test CPT. A test for the dialling tone on the external line
Current test. The other option is to test the line current when answering
Prefix- a 4-digit prefix, which is automatically chosen as the first (DID through a
superior PBX) after engaging a line. The prefix is not recorded in the charging
row.
Dialling – setting the type of dialling for an external line
Announcement tone length– determines how long it must detect an external
dialling t
then the tone is never checked and this line will thus never report a fault.
Time to dial startup determines the minimum time for dialling to be started
after the external dialling tone has been detected
Min time for accounting – the period deducted from the call time for temporary
charging
Priority – an internal line must have higher or the same priority so that it can
use this external line.
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