Ositech Communications Five of Hearts II, User Manual, Page: 23 / 46

Making Modem Connections 21
Sending Data and Faxes Through Digital (PBX) Phone Handsets
DPI connections require more operator intervention than standard analog connections.
With DPI connections, the handset must be operated manually for each call. This is due
to the extensive variety of digital telephone systems.
The Five of Hearts II PC Card comes preconfigured to operate with many digital telephone
systems. If you are unable to establish a DPI connection using the preset DPI settings,
use the T
RUMPCARD
PILOT to configure the modem for the telephone system you are
currently using (refer to Adjusting the DPI Settings for details).
This procedure works with most communications software packages. To use your Five of
Hearts II PC Card for data or fax options with a digital connection:
1 Connect the Five of Hearts II to a digital phone handset.
Ositech provides a DPI cable which you can use to connect the Five of Hearts II PC
Card to a digital phone handset.
2 Operate your communications software as you do normally.
When your communications software instructs the modem to dial, the DPI Assistant
intervenes.
3 Follow the DPI Assistant dialog instructions to establish a DPI connection.
If the digital (PBX) telephone system prevents the DPI Assistant from accessing an
outside line, the DPI Assistant prompts you with the number to dial.
Figure 3-3: DPI Assistant with phone number
4 Lift the handset from the cradle.
Do not return the handset to the cradle until the modem connection is terminated.
Returning the handset to the cradle terminate the modem connection.
Do not use handsfree mode. When the handset is removed from the cradle you should not
hear what is occurring over the telephone line from the digital base unit.