Plantronics Compatibility Guide for Headsets and Telephones (See  “Using the Compatibility Guide” on page 1) Back 22 Next PLANT EQUIPMENT 1A2 Standard 1A2 Consoles ^a M1,P10 ComCentrex Desk Consoles M2 Panel Mount M1, P10 ElectroKey Desk Consoles       Panel Mount P10 Vesta ^bM5 a Some consoles may require 6-wire PTK-style headsets. b Use modular  to plug-prong adapter PN# 18709-01 POLYCOM SoundPoint Pro 2.5mm Jack POSITRON 304 301, 302, 304, 304S Turret M1 400 400L Turret “ IAP    600101 J1 PREMIER TELECOM PRODUCTS, INC. Premier 8DEVT J1 ,M1 Premier 2500, 2554 NO Premier 2530, 2541   M1 Premier 2572, 2575 (2 line) “ 308, 616, 1648 Premier Keysets “ DHK Premier LCD “ Premier Electronic “ 1A3 1A3 Standard Set: NC612 M5 1A3 Speakerphone Set:NC612 “ ESP DX,612,1224,2460,SLS 6/12 ESLI Single Line “ E-Set Single Line “ ESP 8, 12 or 24 button   ^a M5 ESP 12 or 24 BTN (display) “ FLAIR 6, 11, 21, 41 M5 SPRINT PROTEGE Executive DKT ^aM5 a Telset can be programmed for on-hook dialing. Consult manual for instructions. RADIO SHACK Dial in Handset: ET-120,-135,-272,-273,-275 NO Contemporary Phone (1 line) 43-527, -528, -529, -534 “ Trim-Fone (1 line) 43-525,-526,-537,-538 “ ET-283, ET-501, ET-290 “ ET-303, ET-273 “ 43-838, -830,-858,-833,-837 “ 43-827,-834,-805 “ Duofone (1 line) TAD-242, -252 M5 140, 145, 146, 160 “ 165, 166, 167, 169 “ 173, 183, 185, 202 “ 203, 205 “ 170, 171, 175 “ Radio Shack 12-1562 NO Radio Shack (1 line) ET-170, -175, -192, -600 M5 Radio Shack (2 line) ET-180, -181, -182, -191, -193 “ Duofone 195, 196 (2 line) “ System 205, 206 (2 line) “ Duofone System (2 line) 202, 208, 210 “ Duofone system (4 line) 404, 405, 406, 409 “ 410, 411, 412 “ Duofone System 402 M1 1201/1202 “ 1020 Phone/Fax NO 43-373A,  43-375A        M5 RANDIX    PH316 NO RAULAND TC4204, TC4211 M1