Specifications
Introduction
199
Appendix A - Paging Formats
Introduction
This appendix contains reference information on paging format tones, timing, capcodes, 
and function codes for different brands and models of pagers. Information is given as 
accurately as we know at this time. Manufacturers are constantly improving and updating 
their pager products, so always consult the pager manufacturer for the last word. Refer to 
Format Windows on page 113 for more information on how to use ZbaseW to program 
your Zetron Series 2000 paging terminal for pager encoding.
Two-Tone Code Plans
The following Two-Tone Code Plans and Tone Groups tables are built into ZbaseW. 
ZbaseW looks up the proper tone reed frequencies for your two-tone pagers based on the 
capcode you enter. Since ZbaseW handles these details for you, you will not usually need 
to refer to these tables.
The Code Plans and Tone Groups are an industry-standard method of providing 
established sets of the tone frequencies while minimizing overlap between them, so a 
system can have a lot of two-tone pagers without two of them having the same reeds. 
However, because there are a limited number of tones and many code plans, the same 
frequency pairs are typically shared by several of the plans.
The relationship of the tones to Tone Groups and Code Plans can be very confusing. The 
following topics should help you make use these tables, if needed.
Two-Tone Capcodes
You may come across two-tone pagers where you do not know the actual capcodes. If this 
is just an occasional pager or two, you can put in either “2” or a “fake” two-tone capcode 










