User's Manual Part 1
Firmware Version 1.0.0.1  UCM6200 Series IP PBX User Manual  Page 21 of 320
PR ODUCTOVERVIEW
TECHNICALSPECIFICATIONS
Table 1: Technical Specifications 
Interfaces 
Analog Telephone FXS Ports 
2 ports (both with lifeline capability in case of power outage) 
PSTN Line FXO Ports 
 UCM6202: 2 ports 
 UCM6204: 4 ports 
 UCM6208: 8 ports 
Network Interfaces 
  UCM6202/6204: Dual Gigabit RJ45 ports with integrated PoE Plus 
(IEEE 802.3at-2009) 
  UCM6208: Single Gigabit RJ45 port with integrated PoE Plus (IEEE 
802.3at-2009) 
NAT Router 
Yes, UCM6204/UCM6208 only 
Peripheral Ports 
USB, SD 
LED Indicators 
Power/Ready, Network, PSTN Line, USB, SD 
LCD Display 
128x32 graphic LCD with DOWN and OK button 
Reset Switch 
Yes 
Voice/Video Capabilities 
Voice-over-Packet 
Capabilities 
LEC with NLP Packetized Voice Protocol Unit, 128ms-tail-length carrier 
grade Line Echo Cancellation, Dynamic Jitter Buffer, Modem detection 
and 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 
(30ms only), GSM, AAL2-G.726-32, ADPCM; T.38 
Video Codecs 
H.264, H.263, H.263+, VP8 
QoS 
Layer 3 QoS, Layer 2 QoS 
Signaling and Control 
DTMF Methods 
In Audio, RFC2833, and SIP INFO 
Provisioning Protocol and   
Plug-and-Play 
TFTP/HTTP/HTTPS, auto-discovery and 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 
Disconnect Methods 
Call Progress Tone, Polarity Reversal, Hook Flash Timing, Loop Current 
Disconnect, Busy Tone 










