User's Manual

53
ADVANCED FUNCTION OPERATIONS
2TONE Calling
Two-tone sequential, also known as 1+1, is a selective calling method (2 Tones received to set off the
pager function). Many companies have their own names for two-tone sequential options.General Electric
Mobile Radio ® called it Type 99. Motorola ® called it Quik-Call II. For example, the encoder sends a single
tone followed by 50 to 1,000 milliseconds of silence and then a second tone.[3] Decoders look for a valid
rst tone followed by a valid second tone. If no valid second tone is decoded within 2 seconds, the decoder
resets and waits for another valid rst tone.
To set up the 2TONE needed to encode (send) or decode (receive) you need to set it up through
programming software. You can set up to 32 Encode options and 16 Decode.
NOTE:To set your radio to open for calls only after receiving a 2TONE sequence - set up the channel
decode option as needed - and then apply it to the frequency needed. YOU WILL NEED TO SET THE
SQUELCH MODE AS"OPTIONAL SIGNALING"to receive the call. Refer to"Function Menu Setup -
Squelch mode setup"for more details.
NOTE:Radios must be set up to 'Decode' optional signaling (2TONE), otherwise they will ignore the 2TONE
tones being received.