Grandstream UCM6304A 4 FXO 4 FXS Audio PBX Grandstream IP PBX *Note: The Yealink T33G Wall

*Note: The Yealink T33G Wall Mount Bracket is sold separately

It features SIP/VoIP technology with 2-way audio and video streaming feeds loaded directly to smart phones

Polarity Reversal/Wink

you can enjoy maximum freedom and flexibility with W78H

Grandstream UCM6304A 4 FXO 4 FXS Audio PBX Grandstream IP PBX *Note: The Yealink T33G WallThe UCM6300 Audio series allows businesses to build powerful and scalable unified communication and collaboration solutions. This series of IP PBXs provide a platform that unifies fundamental business communications needs, including voice, instant messaging (IM), voice meetings, audio web meetings, data, analytics, mobility, facility access, intercoms and more. The UCM6300 Audio Series supports up to 1500 users and includes a built in instant