Isdn Digital Line Configuration Requirements - 3Com DIGITAL MODEM User Manual

1-6 C 1: I
HAPTER NTRODUCTION
Model 3C872
One copy of TurboCom Windows software
â ä â
One copy of Delrina WinComm Lite and WinFax Lite
communications software
One DB-9-to-DB-25 serial connection adapter
ISDN Digital Line Configuration Requirements
The 3Com Impact digital modem requires an ISDN digital
telephone line that is properly configured for use with the
digital modem.
3Com has determined the optimal ISDN line configurations
for the 3Com Impact digital modem and has provided that
configuration data to many telephone companies.
To simplify the ordering process for an ISDN digital line, use
the following simplified ISDN ordering code:
3ComA * J6
If your digital modem has an internal analog fax modem
(Models 3C872 and 3C877), then two directory numbers
(telephone numbers) will be required to allow a voice call
and a fax modem call to occur at the same time. When you
tell the telephone company the ISDN ordering code
(3ComA * J6), let the representative know that you will need
two directory numbers.
If your telephone company does not support simplified ISDN
ordering codes, refer to Table 1-1 for ISDN ordering
information.
Present this ordering information to the ISDN line installer or
telephone company service representative in your area. Also,
make sure that your local telephone company installer
provides an RJ-11 or RJ-45 connector for your ISDN line.