A20LTE is a LTE IP Phone with 6 SIP accounts used in 4G(LTE) and 3G network environments. It also supports wired network access under IPv4 and IPv6 protocol. Its design concept is based on "Visual operation, excellent voice quality, exquisite detail and unique appearance". It is an entry-level VoLTE phone especially designed for industry users and SIP operators. The 3W speaker's large sound chamber hands-free voice quality, 5-way conference, and 6 SIP accounts highlighted its features in entry-level IP phones. A20LTE supports all the 4G(LTE) and 3G technology standards from different countries, but please note that different countries might need different 4G modules.