SKU : UCM6308
Categories : IP-PBX ,  GrandStream , 
Brand : Grandstream
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The Grandstream UCM6308 is the top-tier model in the UCM6300 series, a powerful and scalable IP PBX platform designed for large businesses requiring comprehensive unified communication and collaboration solutions. The UCM6308 unifies all business communications onto a single centralized network, encompassing voice, video calling, video conferencing, video surveillance, web meetings, data, analytics, mobility, facility access, and intercoms. This model supports up to 3000 users and includes a built-in web meetings and video conferencing solution, allowing employees to connect flexibly from desktops, mobile devices (via the Wave app), GVC series devices, and IP phones. It can be paired with the UCM6300 Ecosystem to create a hybrid platform that combines the control of an on-premise IP PBX with the secure remote access of a cloud solution (via UCM RemoteConnect). The UCM6308 also offers cloud setup and management through GDMS, along with an API for extensive third-party integrations.
Grandstream UCM6308 | |
Analog Telephone FXS Ports | 8 RJ11 Ports (All ports have lifeline capability in case of power outage; number of ports can be expanded by peering with an FXS gateway) |
PSTN Line FXO Ports | 8 RJ11 Ports (All ports have lifeline capability in case of power outage; number of ports can be expanded by peering with an FXO gateway) |
Network Interfaces | Three self-adaptive Gigabit ports (switched, routed or dual mode) with PoE+ |
NAT Router | Yes (supports router mode and switch mode) |
Peripheral Ports | 2*USB 3.0, 1*SD card interface |
LED Indicators | Power 1/2, FXS, FXO, LAN, WAN, Heartbeat |
LCD Display | 320x240 color LCD with touch screen for Shortcut Keys and Scroll Bar |
Reset Switch | Yes, long press for factory reset and short press for reboot |
Voice-over-Packet Capabilities | LEC with NLP Packetized Voice Protocol Unit, 128ms-tail-length carrier grade Line Echo Cancellation, Dynamic Jitter Buffer, Modem detection & auto-switch to G.711, NetEQ, FEC 2.0, jitter resilience up to 50% audio packet loss |
Voice and Fax Codecs | Opus, G.711 A-law/U-law, G.722, G722.1 G722.1C, G.723.1 5.3K/6.3K, G.726-32, G.729A/B, iLBC, GSM; T.38 |
Video Codecs | H.265, H.264, H.263, H263+, VP8 |
QoS | Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS |
API | Full API available for third-party platform and application integration |
Telephony Operating System | Based on Asterisk version 16 |
DTMF Methods | In-band audio, RFC2833, and SIP INFO |
Provisioning Protocol & Plug-and-Play | Mass provisioning using AES encrypted XML configuration file, auto-discovery & auto-provisioning of Grandstream IP endpoints via ZeroConfig (DHCP Option 66 multicast SIP SUBSCRIBE mDNS), eventlist between local and remote trunk |
Network Protocols | SIP, TCP/UDP/IP, RTP/RTCP, IAX, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, STUN, SRTP, TLS, LDAP, HDLC, HDLC-ETH, PPP, Frame Relay (pending), IPv6, OpenVPN® |
Disconnect Methods | Busy/Congestion/Howl Tone, Polarity Reversal, Hook Flash Timing, Loop Current Disconnect |
Media Encryption | SRTP, TLS, HTTPS, SSH, 802.1X, ZRTP |
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