• UCM6202 and UCM6204 support up to 500 users and 50/75 concurrent calls, UCM6208 supports up to 800 users and 100 concurrent calls
• Auto Discovery and Zero Configuration of Grandstream SIP endpoints
• Integrated 2/4/8 PSTN trunk FXO ports, 2 analog telephone FXS ports with lifeline capability and up to 200 SIP trunk accounts
• Gigabit network ports with Integrates PoE, USB, SD card
• Supports up to a 5-level IVR (Interactive Voice Response)
• Built-in call recordings server; recordings accessible via web user interface
• Built-in Call Detail Records (CDR) for tracking phone usage by line, date, etc.
• Supports multi-language auto-attendant and call queue to efficiently handle incoming calls
• Strongest possible security protection using SRTP, TLS and HTTPS encryption
• Supports any SIP video endpoint that uses the H.264, H.263 or H.263+ codecs

Specs:

Analog Telephone FXS Ports: 2 ports (both with lifeline capability in case of power outage)

PSTN Line FXO Ports: 2 ports (UCM6202); 4 ports (UCM6204); 8 ports (UCM6208)

Network Interfaces: Dual Gigabit RJ45 ports with integrated PoE Plus (IEEE 802.3at-2009)

NAT Router: Yes (supports router mode and switch mode)

Peripheral Ports: USB, SD

LED Indicators: Power/Ready, Network, PSTN Line, USB, SD

LCD Display: 128×32 graphic LCD with DOWN & OK button

Reset Switch: Yes

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

Voice and Fax Codecs: G.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 Codecs: H.264, H.263, H263+

DTMF Methods: In Audio, RFC2833, and SIP INFO

DTMF Methods: In-band audio, RFC2833, and SIP INFO Provisioning

Provisioning Protocol & Plug-and-Play: TFTP/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

Network Protocols: TCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, SIP (RFC3261), STUN, SRTP, TLS, LDAP

Disconnect Methods: Call Progress Tone, Polarity Reversal, Hook Flash Timing, Loop Current Disconnect, Busy Tone

Media Encryption: SRTP, TLS, HTTPS, SSH

Universal Power Supply: 2Output: 12VDC, 1.5A; Input: 100 ~ 240VAC, 50 ~ 60Hz

Dimensions: UCM6202/6204: 226mm L x 155mm W x 34.5mm H UCM6208: 440mm L x 185mm W x 44mm H

Weight:  UCM6202/6204: Unit weight 0.51kg, Package weight 0.94kg UCM6208: Unit weight 2.23kg, Package weight 3.09kg

Environmental Operating: 32 ~ 104ºF / 0 ~ 40ºC, 10 ~ 90% (non-condensing); Storage: 14 ~ 140ºF / -10 ~ 60ºC

Mounting: Wall mount & Desktop (UCM6202/6204); Rack mount & Desktop (UCM6208)

Multi-Language Support: English/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 ID: Bellcore/Telcordia, ETSI-FSK, ETSI-DTMF, SIN 227 – BT

Polarity Reversal/Wink: Yes, with enable/disable option upon call establishment and termination

Call Center: Multiple configurable call queues, automatic call distribution (ACD) based on agent skills/availability/busy level, in-queue announcement

Customizable Auto Attendant: Up to 5 layers of IVR (Interactive Voice Response)

Maximum Call Capacity: -Registered SIP devices: supports up to 800 registered SIP devices/users (for UCM6208) and 500 registered SIP devices/users (for UCM6202/6204) -Concurrent SIP calls: Up to 50 (UCM6202), 75 (UCM6204), or 100 (UCM6208), or 66% performance if calls are SRTP encrypted

Conference Bridges: Up to 3 (UCM6202/6204) or 6 (UCM6208) password-protected conference bridges allowing up to 25 (UCM6202/6204) or 32 (UCM6208) simultaneous PSTN or IP participants

Call Features: Call park, call forward, call transfer, DND, ring/hunt group, paging/intercom etc.

Compliance: FCC: Part 15 (CFR 47) Class B, Part 68 CE: EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, TBR21, RoHS A-TICK: AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AS/NZS 60950, AS/ACIF S002 ITU-T K.21 (Basic Level); UL 60950 (power adapter)