Đặc tính kỹ thuật
Model | UCM6208 |
FXS Ports | 2 Ports |
Port PSTN lines FXO | 8 Ports |
Ethernet | 2 port RJ45 Gigabit intergrated PoE Plus (IEEE 802.3at-2009) |
NAT Router | Hỗ trợ chế độ định tuyến và chuyển đổi chế độ |
Peripheral Ports | USB, SD |
LED Indicators | Power/ Ready, Network, PSTN Line, USB, SD |
LCD Display | 128 x 32 LCD |
Voice-over-Packet | 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 Codecs and Fax | 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+ |
QoS | Layer 3 QoS, Layer 2 QoS |
DTMF Methods | RFC2833 and SIP INFO |
Network Protocols | TCP / UDP / IP, RTP / RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP / HTTPS, PPPoE, SIP (RFC3261), STUN, SRTP, TLS, LADP |