IP P
HONE
FOR
MX-ONE
67
6/1553-DBC 446 01 Uen G 2012-02-22
3)
Dial with the external number.
If no free trunk is selected, you will hear a busy tone.
You enable on-hook queuing by dialing the suffix digit for callback
to the busy route.
If the selected route is marked as expensive, you will receive an
Expensive Route Warning Tone which enables you to stop further
call routing.
4)
Replace the handset to end the call.
13.9
Malicious Call Tracing
If you are being disturbed by bothersome or malicious external incoming
calls, it is possible to request number tracing from the network provider.
Tracing can be invoked during or after an ongoing conversation. The
external line can be held for a limited period of time.
When a malicious call is received, a signal can be sent to the switched
telephone network (PSTN) before a call is disconnected. If the calling
subscriber clears the call, the external line can be held for a limited
period of time to invoke the malicious call tracing (MCT).
It is possible to assign a shortcut key to MCT. Contact the system admin-
istrator.
13.9.1
Ordering Malicious Call Tracing
To order MCT during a call, press the MCT shortcut key:
H.323 phones
•
Tap
, and then tap the
MCT
key
•
If the request is accepted, the shortcut key indicator is lit, a text
message is displayed, and an acceptance tone is heard.
•
If the request is rejected, the shortcut key indicator flashes rapidly,
a text message is displayed, and a reject tone is heard
Note:
If no shortcut has been programmed, press
Hold
and dial *39#.
SIP Phones
3.
Tap
Line
to put the call on hold and then dial *39#
4.
The system acknowledges with a tone message indicating if the
MCT request was accepted or rejected.
