8
SIP1 (Public SIP server) register Status: Flash when
enable register and can not register successfully, ON
when enable register and register successfully, OFF
when disable register
SIP2 (Private SIP server) register Status Icon: Flash when
enable register and can not register successfully, ON
when enable register and register successfully, OFF
when disable register
Handset Status Icon: ON when off-hook OFF when
on-hook
Hand-free Status Icon: ON when phone work on hand-free
mode OFF when IDLE or work on handset mode
…
Weekday Status Icon: Show the correct weekday
according to the phone current date
Numerical Numbers and Characters: 0 - 9 * # @ A, B,
C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W,
X, Y, Z
3. Product features
3.1 software features
. Support two models: Bridge and Router(NAT&NAPT)
Network Protocols: TCP/UDP/IP
、
ICMP
、
HTTP
、
DHCP Client
（
WAN
Interface
）
、
DHCP Server
（
LAN Interface
）、
DNS Client
、
DNS Relay
、
SNTP
、
PPPoE
、
FTP
、
TFTP
VoIP Protocols: Support
IAX2
&SIP (RFC3261, RFC3262, RFC3264,
RFC3265) synchronously
Voice Codecs: G.711
（
A-law/U-law
）、
G.723.1(high/low)
、
G.729
NAT transversal: Support STUN client, AVS and Citron etc . Can modify
SIP register port
、
HTTP server port
、
Telnet server port and RTP port
Support two SIP server synchronously
：
Can register two different SIP
server, and can make a call by either proxy
Support standard voice features such as numeric Caller ID Display, Call
Waiting, Hold, Transfer, Do-Not-disturb, Forward, in-band and
out-of-band DTMF, Hotline (off hook autodial), auto answer,ban outgoing
Full duplex hands-free speakerphone, redial, call log, volume control,
voice record with indicator
Support standard encryption and authentication (DIGEST using MD5,
