Introduction - If you have any usage issues, please Google them yourself
the AT command set. Introduced in TETRA System Access Mobile Terminal TMR880 the AT command interface, TMR880 do is to use TETRA secondary development of the requisite information.
Packet : 117143153tmr880atcommandsfull22_extatcmds_v4.rar filelist
TMR880ATCommandsFull22_ExtAtCmds_v4.doc