Glossary of Terms

Understand basic Public Safety definitions and terms.

Hand-off

Definition:

The process by which the Mobile Telephone Switching Office (MTSO) passes a cellular phone conversation from one
radio frequency in one cell to another radio frequency in another cell. It is performed so quickly that callers usually do
not notice.

RF

Radio Frequency.

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AMPS

AMPS is a cellular analog mobile system introduced in 1982 on the 800 MHz frequency and is based on analog FM technology. 25 MHz of spectrum in the...

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Out-Of-Brand Signaling

Any signaling method that uses frequencies that are not in the normal transmission frequency bands of the information transmissions.

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EMF

Enhanced Multi‐Frequency. A voice path signaling protocol that allows the transmission of up to 20 digits per call using multi‐frequency tones.

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