Office of Emergency Medical Service (NC)
From The RadioReference Wiki
North Carolina Medical Communications Network tone codes as assigned by the Office of EMS: Code Tone A CSQ B 203.5 PL C 103.5 PL D 192.8 PL E 127.3 PL F 107.2 PL G 186.2 PL H 167.9 PL I 110.9 PL