54 CHAPTER 1: INTRODUCTION3Com Telephones 3Com Telephones provide the familiar features of a business telephoneand extra features such as one-touch access to voice mail. Table 12 givesa short summary of each 3Com telephone and lists the NBX systemsoftware and the type of license required to support each telephone.Table 12 3Com TelephonesTelephoneModelPartNumberMinimum SystemSoftware RequiredLicenseGroup3103 Managers TelephoneA Gigabit Ethernet capable phonewith a large screen display and afull-duplex speakerphone. The 320x 120 pixel display can manage upto 12 calls via the 10 soft keys. Tenpreprogrammed buttons offerinstant access to frequently usedcapabilities while an additional 8feature buttons with lights areprovided to allow easy access tobridged line appearances, speeddials and a host of other features.3C10403A R5.0 Group 23C10403B R5.0.203102 Business TelephoneProvides the flexibility of 18programmable buttons with lightsand the convenience of 10fixed-feature buttons, includingSpeaker, Redial, Conference,Transfer, Hold, Voice Mail,Forward to Mail, Hands-Free,Mute, and two Volume controls.3C10402A R4.3 Group 23C10402B R5.0.203101 Basic TelephoneProvides four programmablebuttons with LEDs. Simplifies callhandling with distinctive Hold andMessage buttons. Enables easyinteraction with the display viathree display soft keys andfour-way cursor control.3C10401A R4.3 Group 13C10401B R5.0.203101SP Basic Telephone(with speakerphone)All the same features of the 3101Basic Telephone plus a half duplexspeakerphone.3C10401SPKRA R4.3 Group 13C10401SPKRB R5.0.20