Products and Services
Building a CDMA network is little use without the tools to ensure ongoing optimum performance
Proactive network monitoring such as this has allowed service providers to dramatically reduce network downtime.
Integrating these solutions can, claims Glenayre, provide
new integrated capabilities. For instance, BOS alarms Traffic Trending
Tool to alert the user to trends that may adversely affect service levels
before customers are affected.
Base range boost
The new telephone, which has access to both the wireless local loop and the CDMA cellular system, comes in two types: the SCW-F2000, which is a CDMA PCS (1.9GHz) handset, and the SCW-F200, a cellular (800MHz) unit. Both are capable of sending and receiving information, and can be connected to a personal computer or a digital G3 facsimile machine for sending and receiving character data.
The telephone comes with a short message service, voice mail/telephone number editing, a built-in four-line LCD display and three-way calling/call waiting functions.
Compared to other formats such as analog or TDMA, claims
Samsung, the CDMA WLL can accommodate at least ten times more traffic
over a single frequency. Its CDMA digital technology gives it clean sound
quality, and it can handle both wired and wireless services.
Chips for Everything
It began development of the D5400 CDMA chip set in 1995. This product offers complete dual mode CDMA/AMPS digital and analog baseband processing for subscriber units used in cellular, PCS and WLL applications.
The D5401, designed for mobile stations in use both in the US and international markets, is claimed to provide a compact baseband processing solution and to support 8kbit/s, 13 kbit/s and EVRC vocoders.
In 1997 DSPC announced that Fujitsu, Siemens and Kenwood were developing handset designs based on its D5400 CDMA chip set.
Other products include a TDMA baseband solution developed in collaboration with NEC Corporation. In 1995 DSPC acquired CTP Systems, which in the early 1990s developed a number of contract wireless services, including public base stations for the Japanese Personal Handyphone System, specialized modems for WLL and telepoint applications, and cable and satellite decoders for the broadcasting industry.
CTP Systems is now the Wireless PBX System Division of DSPC, and offers the CTPhone 1900 wireless system add-on for PBX systems, its first low-mobility application. The system is claimed to be ideal for traditional office environments, campuses, manufacturing floors, hospitals and other locations that would benefit from employee mobility.