 Unlike fixed line system, SIM operated deskphone feature built in batteries so can operate without wires if required and be easily moved and installed from office to office, location to location.Hardware

Leading design and manufacturers of SIM operated deskphones include Tecdesk, Huawei and Jablocom.SIM operated deskphone models range from standard deskphone functionality such as built-in display, caller ID, phonebook, mute, redial, loudspeaker, conference call facility, memory keys and SMS support, through to HD voice call quality, 3G connection to PC and laptop and Bluetooth wireless connection to headsets.