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7
Supplementary Voice
Services
Before You Begin
Call Waiting and Call
Hold
S
UPPLEMENTARY
S
ERVICES
The ISDN LAN Modem supports the following supplementary voice services.
Call Waiting and Call Hold
Calling Line Identification Restriction (CLIR)
Malicious Call Identification (MCID)
In order to use these services, they must also be supported on your ISDN line. Call
your telephone company if you want to have these services added.
Call Waiting allows you to place an active call on hold in order to answer an
incoming call. By default, Call Waiting is enabled on both ports. You can change
this configuration by entering the appropriate commands listed in Table 5 using a
telephone connected to one of the phone ports.
Table 5 Configuring Call Waiting
Press these telephone keys
*43#
#43#
*#43#
Once Call Waiting is turned on, it remains on until it is turned off.
Call Hold
Call Hold, as a service in conjunction with Call Waiting (not as a separate service),
allows you to interrupt a call in order to receive a second incoming call. When Call
Hold is on, communication on a B channel is interrupted and the B channel is
released for the incoming call. The Call Hold function does not, however, allow
you to put a call on hold and make a second outgoing call; it only allows for a
second incoming call.
How to Use Call Waiting
To use Call Waiting do the following.
1 When you hear the Call Waiting tone, press and release the switch hook button to
put the first call on hold and connect to the second call.
2 To put the second call on hold and switch back to the first call, press and release
the switch hook button.
V
OICE
To do this
Enable Call Waiting for the phone port to which the
handset is connected.
Disable Call Waiting for the port to which the
handset is connected.
Check if Call Waiting is enabled or disabled. A
double tone indicates this feature is enabled. A triple
tone indicates this feature is disabled.
C
ALL
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Troubleshooting
