ISO 9001:2015 Certified …………….……..….....Soaring Heights in Transforming Industry and EconomyMachakos UniversityNetwork & TelecomsInformation Communication Technology Servicesict.mksu.ac.keUsing your 3905 IPT PhoneUsing the Cisco 3905 IP TelephonesCisco Unified 3905 IP Phone OverviewThe Cisco Unified SIP Phone 3905 provides voice communicationover an Internet Protocol (IP) network. The Cisco Unified IPPhone functions much like a digital business phone, allowing youto place and receive phone calls. In addition, the Cisco UnifiedSIP Phone 3905 supports features such as mute, hold, transfer,conference, call forward, and more.A Cisco Unified IP Phone, like other network devices, must beconfigured and managed. These phones encode G.711a, G.711mu,G.729a, and G.729ab, and decode G.711a, G.711mu, G.729,G.729a, and G.729ab.Caution Using a cell, mobile, or GSM phone, or two-way radio in closeproximity to a Cisco Unified IP Phone might causeinterference. For more information, refer to the manufacturer’sdocumentation of the interfering device.