4FXS+4FXO300con/2000user
Grandstream UCM6304 - IP PBX with 4FXO+4FXS 3 LAN&WAN GigE ; 300 Concurrent call with 2,000 users; LCD touch screen 4 VDO Room 40 Parties 200 Sip Trunk.
ข้อมูลผลิตภัณฑ์
Features