3Com manual Configuring the 3C882 Isdn Modem for a PC

Configuring the 3C882 ISDN Modem for a PC 3-10

One Telephone Number per Analog Device. If you have two telephone numbers and two analog devices, you may want one telephone number associated exclusively with just an analog telephone and the other telephone number associated with just a fax machine.

In this example, shown in Figure 3-10, calls to 908 555 1212 will only be routed to the telephone.

U

RS-232 ISDN

2

1

RESET

9VDC MAX

•5A

Number 1
Telephone Number:		9085551212
Service Profile Identifier: (SPID)				015551212000
Route Voice Calls to:	Phone Port 1					Phone Port 2
Number 2
Telephone Number:			9085551213
Service Profile Identifier: (SPID)				015551213000
Route Voice Calls to:	Phone Port 1				Phone Port 2

908 555 1212 908 555 1213

Figure 3-10 Configuration for One Telephone Number per Device

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 Figure 3-11. Calls to that telephone number will ring both devices allowing you to answer a call using either one.

Note that while you are using the fax machine, for example, you cannot use the telephone to place or receive calls because your ISDN line has only one telephone number.