Malicious Call Tracing; Direct Inward System Access (Disa) - Aastra 7433ip User Manual

12.7
12.7.1
12.8
12.8.1
6/1553-DBC 433 01 Uen B6 2010-07-09

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).
Ordering Malicious Call Tracing
To order MCT, do the following:
1. Press Hold.
2. Dial *39#.
A text and voice message indicate whether the request has been
accepted or rejected.

Direct Inward System Access (DISA)

If you are assigned to use the Direct Inward System Access (DISA)
feature and you are working externally, you can call your office and get
access to an external line in order to make business calls. The business
call will be charged to your office extension number or an account
number. You will only be charged for the call to the office.
The external phone must be of push button type provided with a pound
key (#) and a star key (*), or a mobile phone adapted for dial tone pulses
(DTMF). After a completed call you must hang up before a new call can
be made.
The procedure varies depending on whether you use an account code
or not, and whether you use a common or individual authorization code.
Calling With a Common Authorization Code
1. Call the DISA feature at your office.
Wait for dial tone.
2. Dial *72* authorization code #.
Wait for a dial tone.
O U F
THER SEFUL EATURES
80