3Com 3COMIMPACT IQ, User Manual

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Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-9
Configuring Voice Call Routing
The 3C882 ISDN modem allows you to assign a specific
telephone number to a specified analog phone port. By
default, telephone number 1 is assigned to phone port one,
and telephone number 2 is assigned to phone port two, as
shown in Figure 4-10. This is especially helpful should you
have both a telephone and a fax machine connected to your
3C882 ISDN modem’s analog ports.
Figure 4-10 Voice Call Routing Default Setting
Note the phone port check marks for each telephone
number. This default configuration routes each telephone
number to a specified port.
The ISDN Call Waiting default configuration is best served by
the recommended scenario shown in Figure 4-13. By default,
ISDN Call Waiting has been enabled on Phone Port 1, for use
with your telephone, but disabled on Phone Port 2 to prevent
potential interruption of calls to your fax machine (S76=1).
One Telephone Number and Two Analog Devices.
If you have only one telephone number for your ISDN line
and two analog devices, check the Phone Port 1 and Phone
Port 2 boxes located in the Number 1 group box, as shown in
RESET
9 VDC
• 5A MAX
RS-232
ISDN U
1
2
908 555 1212 908 555 1213