Grandstream UCM6308A gives SMBs the professional business telephony solution they desire — plus unified communications applications like corporate chat, web meetings, access control and much more. UCM6308A supports up to 1500 users and 200 concurrent calls (150 with SRTP encryption) — with an integrated conference bridge that supports up to 7 meeting rooms and 150 parties. As part of the Grandstream UCM6300 Audio Series, the IP PBX supports everything the UCM6300 Series supports, except only video conferencing support. It integrates your business communications with all your devices — including the free Wave app for Android and iOS.

More than just an IP PBX, UCM6308A gives you enterprise class security. It has an automated NAT firewall to protect the edge — plus secure boot, unique certificates and more. The VoIP phone system has 3 Gigabit Ethernet ports with PoE+ support. It has 8 FXS ports for integrating analog devices and 8 FXO ports for connecting to the PSTN. The phone system is compatible with GDMS for cloud-based setup and management.

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Grandstream UCM6308A Quick Specs:

• Communications Protocol: SIP
• Call Capacity:
• Users: 1500
• Concurrent Calls: 200
• Concurrent SRTP Calls: 150
• Conference Bridge:
• Meeting Rooms: 9
• Parties: 150
• Auto Attendant: 5 layers
• Physical Connectors:
• FXS: 8x RJ11
• FXO: 8x RJ11
• Ethernet: 3x Gigabit RJ45 PoE+
• USB: 2x USB-A 3.0
• SD: 1x SD Card
• Dimensions:
• Height: 1.82 in
• Width: 19.09 in
• Depth: 7.37 in
• Weight: 5.60 lb

Grandstream UCM6308A Audio VoIP Phone System Package Contents:

• UCM6308A IP PBX
• Ethernet Cable
• 2x Power Adapters
• Quick Installation Guide

Grandstream UCM6300 Audio Series Documentation:

• Grandstream UCM6300 Audio Series Datasheet