1.   And field staff could improve communications with the home office by sending and receiving documents from their laptops using special wireless modem cards.

2.   DSL uses a special digital modem and requires a visit from the phone company to install service.

3.   For DSL services to work, phone companies have to install equipment in their networks and consumers have to buy special modems for their computers.

4.   I was to send back the special modem and wait until the service was available in my area.

5.   Internet users also will need a special ISDN modem, which helps provide the high-speed data communications, as well as pay a fee to an Internet access provider.

6.   Pacific Bell on Wednesday introduced a package of fast ISDN data and phone service and the special modem required to use it.

7.   Right now, cable access to the Internet requires a special modem that is usually installed by a technician from the cable company.

8.   That service requires the use of a special modem.

9.   The lines use extra bandwidth in copper phone lines but still require special modems and special installation service involving a local telephone company.