Grandstream UCM6302A IP PBXs$ 99.61 Grandstream UCM6302A IP PBXs The Grandstream UCM6302A is an on-premise audio-only IP PBX designed for medium-sized organizations. As part of the UCM6300 Audio Series, it integrates voice, instant messaging (IM), audio conferencing, and remote collaboration—all managed through the free Wave app. It supports hybrid deployment using UCM RemoteConnect and cloud provisioning via GDMS, combining local control with remote access and management Grandstream UCM6302A IP PBXs Specifications Users & Call Capacity Supports up to 500 registered users Handles up to 75 concurrent calls 5 conference rooms with up to 75 participants total Analog & Digital Interfaces 2 FXS ports (for analog phones) 2 FXO ports (for PSTN lines) Lifeline support for power failure fallback Network & Connectivity 3 Gigabit Ethernet ports (switch/router modes) USB 2.0 and USB 3.0 ports SD card slot for storage and backup Built-in NAT router and firewall Supports VPN, DHCP, DNS, STUN, IPv6 Audio Codecs & Voice Quality Supports Opus, G.711, G.722, G.729, G.723, iLBC, GSM T.38 fax support Echo cancellation, packet loss concealment, and jitter buffer Power & Build Powered by 12V DC, compatible with 100–240V AC input PoE support on one Ethernet port Quad-core processor with 1 GB RAM and 32 GB internal storage Operating temperature: 0°C to 45°C Dimensions: 270 x 175 x 36 mm Weight: approximately 725 g Security & Compliance Secure boot, strong default passwords TLS, HTTPS, SRTP, SSH encryption protocols Complies with FCC, CE, IC, and RCM standards Related products Yeastar S20 IP PBX SystemSelect options Yeastar EX08 Expansion CardSelect options Grandstream UCM6300A Audio Series IP PBXsAdd to cart Yeastar P560 VoIP PBX Phone SystemSelect options This product has multiple variants. The options may be chosen on the product page Grandstream UCM6302A IP PBXsAdd to cart