User:Jkb2005/sandbox

MTPS (Musical Tone Paging System) is an open source paging system. It was developed as a simple way to activate a pager or other types of alerting devices.

How it works
Each pager/alerting device has a specified 6 digit numeric code (Ex. 908591, 408265, etc). Pagers can have a specific group code, which is also 6 digits, but can only be the letters A-F (Note: The group call codes are only meant to be functional on the MTPS-420 mode). The numbers 0-9 represent a specified tone, as well as the special group letters, A-F. There are two main "modes" of the MTPS system. These are "MTPS-420" and "MTPS-220". The "MTPS-420" mode was implemented due to the frequency limitations of certain radio decoders. Pagers/alerting devices can have any 6 digit numeric code, or group call code, but the group code "FFFFFF" is reserved for emergency usage only.