Telephone Switching Systems
PBX Number AT&T Partner Plus 110 AT&T Partner 2 111 AT&T Partner ACS 112 AT&T Merlin Legend/Magix 113 AT&T System 25 114 Comdial DSU/Unisyn 2-digit ext. 121 Comdial DSU/Unisyn 3-digit ext. 122 Inter-Tel GMX 12/24 140 Iwatsu Adix 8/24 (S/M Series) 150 Iwatsu Adix 16/48 151 NEC Electra, Level I (release 2.00+) 170 NEC Electra II (release 3.00+) 171 NEC/Nitsuko 124i/128i/384i/DS1000/2000 180 Panasonic KXT 1232 11D 190 Panasonic KXTD 1232 191 Panasonic DBS 824 192 Panasonic DBS Alternate 1 193 Panasonic 576 194 Panasonic KX-TDA 195 Samsung DCS 2.2/Compact 220 Sprint CTX/MTX 230 Siemens HiCom 150e Office Pro/Office Com 240 Siemens HiCom 150e Office Point 241 Toshiba DK-8 250 Toshiba DK-16 251 Toshiba DK-16e, DK-40 252 Vodavi Starplus DHS 260 WIN 36D 270 WIN 100D 271 WIN 48/440CT