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Calling Line
Identification Restriction
You can restrict presentation of your telephone number(s) on Caller ID devices,
either permanently or on a per-call basis. By default CLIR is disabled, meaning that
you are allowing your telephone number to be shown on a Caller ID display. If you
enable CLIR, you prevent the display of your telephone number on a Caller ID unit.
Permanent Configuration
To enable CLIR on a permanent basis, use the following handset commands from
a telephone connected to a phone port on the ISDN LAN modem.
Table 6 Permanent Configuration of CLIR
Press these
telephone keys
To do this
#8#1#
Enable CLIR for the phone port to which the handset is
connected.
#8#0#
Disable CLIR Waiting for the port to which the handset is
connected.
#8#*#
Check if CLIR Waiting is enabled or disabled. A double tone
indicates this feature is enabled. A triple tone indicates this
feature is disabled.
Call By Call Configuration
To enable CLIR on a temporary, call-by-call basis, use the following handset
commands from a telephone connected to a phone port on the ISDN LAN
modem.
Table 7 Call By Call Configuration of CLIR
Press these
telephone keys
To do this
**31#
Enable CLIR for the call you are about to place on the phone port
to which the handset is connected.
##31#
Disable CLIR for the port to which the handset is connected.
**#31#
Check if CLIR is enabled or disabled. A double tone indicates this
feature is enabled. A triple tone indicates this feature is disabled.
Malicious Call Identification (MCID)
MCID allows you to request the trace of malicious calls on a call-by-call basis. The
MCID function can be invoked at any time while a call is coming in by pressing
*39# on a handset connected to a phone port attached to the ISDN LAN modem.
Your telephone company switch must support MCID in order for you to use it.
Check with your telephone company.
Supplementary Voice Services
83
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Troubleshooting
