Connect up to 500 SIP endpoints using the Grandstream UCM6204 IP-PBX. This compact VoIP appliance brings enterprise-grade audio, video and data control in a cost-effective and easy-to-use device, which features 2 Gigabit Ethernet, 2 FXS and 4 FXO ports. Using the UCM6204, you can centralize all of your business's communications. It supports up to 45 audio calls or 30 WebRTC sessions happening simultaneously, as well as 3 password-protected conference bridges with a maximum of 25 concurrent PSTN or IP participants per bridge.

Your communications will be secure, with a combination of SRTP, TLS and HTTPS encryption protecting your data. Grandstream UCM6204 supports the open SIP standard, as well as a broad range of audio, video and fax codecs. Layer 2 and Layer 3 Quality of Service (QoS) functionality allows you to prioritize data to ensure better communication. It is a 802.3at PoE device, and comes with a 12V power adapter. It can be mounted on a wall or placed on a desk.