All 900 MHz technologies have better range and resistance to interference than the traditional 25 channel cordless telephones. Users will have a wider area of reception within and around their homes and offices. Because of the shorter radio waves used, the 900 MHz signals are better able to penetrate obstructions than the longer radio waves used by 25 channel technologies.

There are three types of 900 MHz technology:

• Analog - Up to 4 times the range of 25 channel products
• Digital - Offers the same advantages as analog, plus:
  • Scrambles conversations for greater privacy
  • Digitally separates and amplifies the voice while blocking unwanted noise for improved clarity
  • Greater consistency of voice quality
• Digital Spread Spectrum: Offers the benefits of digital, plus:
• Up to 7 times the range of 44-49 MHz product
• Better clarity, range, and privacy than analog or digital
  There are two types of DSS:
  • Frequency Hopping Spread Spectrum (FHSS)
  • DSS with Wide Band Channels

Digital Spread Spectrum

Using Rockwell's 900 MHz Digital Spread Spectrum chipset, Casio PhoneMate's TC-950 and CP-850 offer the best range, clarity, and resistance to interference of all 900 MHz technology, including Frequency Hopping Spread Spectrum. DSS with Wide Band Channels is the latest and best technology available.

The DSS Wide Band digital technology is unparalleled in filtering interference and avoiding audio drop-outs compared to the narrow band FHSS phones. To get a clear understanding of the wide band channel system, imagine it as a highway. The highway has a specific width (902-928 MHz).

FHSS telephones divide the highway into as many as 180 lanes (channels), and according to government regulations these frequency hoppers must hop between 10-50 channels every few seconds. Some of these channels may overlap.

DSS with Wide Band technology uses 20 wide and distinct channels over the same frequency range--without changing channels--providing better communications signal stability and clarity.

Range: Digital Spread Spectrum has greater range than analog or digital 900 MHz telephones. Digital Spread Spectrum uses 100 mW power vs. 10 mW to provide 10 times the power of other 900 MHz technologies.

Clarity: Smart channel hopping on the CP-850 and TC-950, using the best technology available, occurs seamlessly during a conversation whenever interference is encountered, protecting the user from irritating interference and the inconvenience of pressing the channel button.

Security: SecureCom^tm uses a highly sophisticated digital voice-scrambling technology, making eavesdropping on the communication between the handset and the base virtually impossible.

Automatic Digital Security Coding protects communications between the handset and base by randomly selecting one of 16 million security codes. Signals from other phones, baby monitors or other 900 MHz devices will not falsely activate Casio PhoneMate's 900 MHz features.

Battery Life: Rockwell technology includes enhanced power management which results in more than 7 days standby battery time. The transmitter power is automatically adjusted between 1 milliamp (mA), 10 mA, and 100 mA, depending on the distance between the handset and base. Lower power is used when the handset is close to the base and more power is used as the handset moves away.

CASIO PHONEMATE INC.
P.O. Box 2914, Torrance, California 90509-2914
20665 Manhattan Place, Torrance, California 90501
(310) 618-9910 . FAX (310) 212-6316