W1A2 Key Telephone System
W25-pair color code
W66 block
W110 block
WAnalog telephone adapter
WAT&T Merlin
WBell System Practices
WBusiness telephone system
WCalculagraph
WCandlestick telephone
WCarterfone
WContempra
WDemarcation point
WDistribution frame
WEricsson DBH 1001 telephone
WEricsson Dialog
WTelephone exchange
WExtension bell
WField telephone
WFritz!Box
WGolden telephone
WGrillo telephone
WHandset
WHeadset (audio)
WKrone LSA-PLUS
WLineman's handset
WLoading coil
WLobster Telephone
WMain distribution frame
WModel 102 telephone
WModel 202 telephone
WModel 302 telephone
WModel 500 telephone
WMotorola APCOR
WMulti-frequency receiver
WNetwork interface device
WPatch cable
WPatch panel
WPrairie Grove Airlight Outdoor Telephone Booth
WPush-button telephone
WQuad digital audio processor
WRadiotelephone
WReed relay
WReis telephone
WShoe phone
WSound-powered telephone
WStingray phone tracker
WGeorge Sweigert
WTelephone desk
WTelephone hook
WTelephone hybrid
WTelephone keypad
WTin can telephone
WTip and ring
WTrimphone
WUSB phone
WUtility pole
WW48 (telephone)