Grandstream IP PBX for 1000 Extension Solution

UC features for up to 2000 users UCM6500

The UCM6510 IP PBX appliance is designed to bring leading edge voice, video, data, and mobility features to enterprises, small and medium businesses, retail and residential environments in an easy-to-manage fashion. This enterprise-grade on premise IP PBX supports E1, T1 and J1 netwo rks and offers scalability by supporting up to 2000 users. The UCM6510 sports a 1GHz quad-core Cortex A9 processor, 1GB RAM and 32GB flash. This secure and reliable IP PBX delivers unified communication features at an unprecedent ed price point without any licensing fees, costs-perfeature, or recurring fees.

Supports up to 2000 users, 50 SIP trunk accounts, up to 200 concurrent calls

Zero configuration provisioning of Grandstream SIP endpoints

Strongest-possible security protection using SRTP, TLS and HTTPS encryption

Gigabit network ports with integrated PoE+; Integrated NAT router

Supports up to a 5-level IVR (Interactive Voice Response)

Built-in call recording server; recordings accessed via web user interface

Supports call queue for efficient call volume management

Built-in Call Detail Records (CDR) for tracking phone usage by line, date, etc.

Multi-language auto-attendant to efficiently handle incoming calls

Integrated LDAP and XML phonebooks, flexible dial plan

Supports any SIP video endpoint that using the H.264, H.263 and H.263+ codecs

Supports voicemail and fax forwarding to email


Analog Telephone FXS Ports2 RJ11 ports (both with lifeline capability in case of power outage)
PSTN Line FXO Ports2 RJ11 ports (both with lifeline capability in case of power outage)
T1/E1/J1 Interface1 RJ45 port
Network InterfacesDual Gigabit ports (switched or routed) with PoE+
NAT RouterYes (user configurable)
Peripheral PortsUSB, SD
LED IndicatorsPower 1/2, PoE, USB, SD, T1/E1/J1, FXS 1/2, FXO 1/2, LAN, WAN
LCD Display128x32 dot matrix graphic LCD with DOWN and OK buttons
Reset SwitchYes, long press for factory reset and short press for reboot

Voice/Video Capabilities

Voice-over-Packet CapabilitiesLEC with NLP Packetized Voice Protocol Unit, 128ms-tail-length carrier grade Line Echo Cancellation, Dynamic Jitter Buffer, Modem detection & auto-switch to G.711
Voice and Fax CodecsG.711 A-law/U-law, G.722, G.723.1 5.3K/6.3K, G.726, G.729A/B, iLBC, GSM, AAL2-G.726-32, ADPCM; T.38
Video CodecsH.264, H.263, H263+
QoSLayer 3 QoS, Layer 2 QoS

Signaling & Control

DTMF MethodsIn Audio, RFC2833, and SIP INFO
Digital SignalingTPRI, SS7, MFC/R2, RBS (pending)
Provisioning Protocol & Plug-and-PlayTFTP/HTTP/HTTPS, auto-discovery & auto-provisioning of Grandstream IP endpoints via ZeroConfig (DHCP Option 66 multicast SIP SUBSCRIBE mDNS), eventlist between local and remote trunk
Disconnect MethodsCall Progress Tone, Polarity Reversal, Hook Flash Timing, Loop Current Disconnect, Busy Tone


Media EncryptionSRTP, TLS, HTTPS, SSH
Advanced DefenseFail2ban, alert events, Whitelist, Blacklist, strong password based access control


Universal Power SupplyInput: 100 ~ 240VAC, 50/60Hz; Output: DC+12V, 1.5A
PhysicalUnit Weight: 2.165 kg; Package Weight: 3.012 kg
Dimensions440mm(L) x 185mm(W) x 44mm(H)
EnvironmentalOperating: 32 - 113ºF / 0 ~ 45ºC, Humidity 10 - 90% (non-condensing)
Storage: 14 - 140ºF / -10 ~ 60ºC, Humidity 10 - 90% (non-condensing)
MountingRack mount & Desktop

Additional Features

Multi-Language SupportEnglish/Simplified Chinese/Traditional Chinese/Spanish/French/Portuguese/German/Russian/Italian/ Polish/Czech for Web UI; Customizable IVR/voice prompts for English, Chinese, British English, German, Spanish, Greek, French, Italian, Dutch, Polish, Portuguese, Russian, Swedish, Turkish, Hebrew, Arabic; Customizable language pack to support any other languages
Caller IDBellcore/Telcordia, ETSI-FSK, ETSI-DTMF, SIN 227 – BT
Polarity Reversal/WinkYes, with enable/disable option upon call establishment and termination
Call CenterMultiple configurable call queues, automatic call distribution (ACD) based on agent skills/availability/ work-load, in-queue announcement
Customizable Auto AttendantUp to 5 layers of IVR (Interactive Voice Response)
Maximum Call CapacityUp to 2000 registered SIP endpoints, up to 200 concurrent calls
Conference BridgesUp to 8 bridges, up to 64 simultaneous conference attendees
Call FeaturesCall park, call forward, call transfer, DND, DISA, ring group, pickup group, blacklist, paging/intercom etc.
ComplianceFCC: Part 15 (CFR 47) Class B, Part 68
CE: EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, TBR21, RoHS
RCM: AS/NZS CISPR 22, AS/NZS CISPR 24, AS/NZS 60950, AS/ACIF S002 ITU-T K.21 (Basic Level); UL 60950 (power adapter)
T1: TIA-968-B Section 5.2.4

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