Re-Introduced for "Intrinsically Safe" Industries Construction, Mining, Oil & Gas . Cordless to Handset TM-2200HS is not produced anymore. TM2300 B & R is still made- a Base to Remote. (See below) So you are extending the Phone Jack or Dialtone to another location 1-3 miles away? OK, that is a Base to Remote (or also known as a Base-to-Base).