| Other
Technologies and Standards
The key technologies and
standards are:
| Technology |
Geographic Coverage |
Voice/Data |
|
| GSM cellular |
National/Global |
Voice/data |
| CDMA cellular |
North America and selected countries |
Voice/data |
D-AMPS cellular
(IS-136 TDMA) |
North America and selected countries |
Voice/data |
| CDPD cellular |
Mainly USA |
Voice/data |
| Packet data |
National/European |
Data |
| Mobile radio |
Regional/National |
Voice/data |
| Satellite |
Global |
Voice/data |
| PHS cordless |
Japan and some Asian countries |
Voice/data |
| Two-way paging |
USA and selected countries |
Messaging data |
| |
- GSM cellular, packet data,
mobile radio and satellite have well-established data services.
- CDMA is expected to have data
services by early 1998.
- Two-way paging is operational
in the USA and emerging in Israel, Australia and other nations.
- The Personal Handyphone System
(PHS) from Japan is gaining popularity.
|
|
