Yealink sip t26p is a professional ip phone which aims to provide business users a cost effective solutionequipped with the leading ti voip voice engine it helps to make users proficient and confident in performing common telephone tasksit features fashion and sleek design abundant telephony applications broad interoperability with the popular 3rd party voip products meanwhile it supports superior wideband codec g722 which enables excellent hd voicecombined with all of these features sip