iPECS UCP
Feature Description and Operation Manual Issue 1.3
322
4.15 ISDN Supplementary Services
In many cases, the ISDN service provider offers enhanced services, to which a user may
subscribe. The iPECS system allows access to these ISDN “Supplementary Services”
implemented under the ETSI regime as described below.
4.15.1 ISDN Call Deflection
Description
When the ISDN Supplementary Service “Call Deflection” is supported, you can forward
incoming calls on the ISDN line directly through the ISDN without the need to establish a
connection through the system.
When Call Deflection is used, the system sends a call-deflection request message with the
telephone number to receive the call to the ISDN. The ISDN then sends incoming calls to the
desired telephone number. In this case, the system does not set-up a Line-to-Line
(Unsupervised Conference) connection for the call.
Operation
iPECS IP & LDP Phones
1. Lift the handset or press the [SPEAKER] button to receive dial tone.
To activate ISDN Call Deflection to an external number
2. Press the [FWD] button.
3. Dial Forward condition (“1”~“4”, “#”).
4. Press [SPEED] button and dial the desired bin number.
5. Replace the handset to return to idle.
1. Press flashing [FWD] button, Call Forward will deactivate and the [FWD] button
LED is off.
To deactivate ISDN Call Deflection
Conditions
1. The ISDN must support the Call Deflection Supplementary Service as defined by
the ETS300-202/206/207 standard protocol.
2. ISDN lines that support Call Deflection must be assigned in the system database.
Programming
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