The SIP-T27G IP Phone is a recent improvement of the T27P. It is a feature-rich desktop phone that combines superior voice capabilities with increased function. The Optima HD technology and wideband codec of Opus provide great sound quality and a lifelike audio. The SIP-T27G has a USB port that allows for expansibility with Bluetooth, Wi-Fi, and USB recording features. The SIP-T27G IP Phone was built with Gigabit Ethernet. The SIP-T27G is secure because it uses standard encryption protocols for remote provisioning and software upgrades.