MiVoice 6730a Analog Phone is an advanced professional analog phone, online powered by the iPbx (analog board) to which it is connected – MiVoice 6730 Analog Phone is an advanced professional analog phone, online powered by the iPbx (analog board) to which it is connected. – It provides functions such as managing call logs, volume control, message waiting, lock… and it is multi-lingual (6 languages??). – It is wall mountable with the optional wall kit.