AASTRA DT4x3 for MX-ONE User Guide EN - Manual (Page 88)

1424-EN/LZT 103 089 Uen D 2010-02-12 88
O THER U SEFUL F EATURES
be able to stop external incoming calls from being directed to your
facility's attendants.
This protection may be manifested by the following:
• Restricted protection on no-answer condition: When your
extension is free, external calls that are presented on your exten-
sion, will ring continuously, without a time limit, until you answer the
call, or until the caller hangs up.
• Restricted protection on busy condition: When your extension
is busy, external calls that are presented on your extension, will
remained in camp-on mode, without a time limit, until you answer
the call, or until the caller hangs up.
• Extended protection: This option combines the two previous
cases.
The protection against re-direction of your calls to the automated atten-
dant does not depend on any action on your part in any of the above
cases.
14.3 Secret of Identity
When your facility is connected to the ISDN network, your identity is
usually transmitted to your external calling parties, and vice versa.
Depending on the configuration of your extension, your identity may not
be revealed to the external ISDN network calling parties. All your
outgoing ISDN network calls will then hide your identity without any
specific action on your part. However, your identity will be revealed to
internal callers, and you will still receive information concerning your
external incoming calling parties.
14.4 Account Code
The account code function is used to charge a call to an account number
or to prevent unauthorized calls from your phone. The account code can
have 1 to 15 digits.
To enable this function, do the following:
1. Dial the network access prefix specified for the service.
Generally, this consists of a network access prefix that is reserved
for placing outgoing external calls that are subject to account
codes. Ask your system administrator for this prefix.
2. Dial the account code and press #.