Tele_Info:

tele_info: < beacon-file>

VariableComment
beacon-filefile containing telemetry information (PARM.,UNIT.,EQNS.,BITS. messages addressed to the digi itself. See APRS Specification on http://www.tapr.org/ for details)

More information about the file digi_tlm.ini on digi_tlm.ini.

example:

tele_info: digi_tlm.ini