Plantronics
  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