Q710E is a Voip Phone,Ip phone (Sip phone) which can has 2 IP numbers

Features:
1) Unique number pad (N' pad)
2) Caller ID and call waiting number display
3) Caller ID with directory name match
4) Answer machine
5) Call recorder
6) 100 names and numbers directory with auto-dial
7) Call number using name-directory matching or via caller ID
8) 250 name and number call log
a) 75 missed calls
b) 75 incoming calls
c) 100 outgoing calls
9) Calling date and start time stored in the call log
10) Dial from call log with number edit
11) 100 name and number Redial with number edit
12) Missed call display/light indicator
13) Call timer
14) Unique N' Pad function (save a number, while talking)
15) Speaker phone on/off with LED
16) Mute on/off with LED
17) 4 programmable memory keys for speed dial or feature access
18) 3 lines/24 characters backlit display
19) Voice mail message waiting indicator
20) 3 screen -interactive function keys
21) Link / release / hold / volume keys
22) Visual ringing/extension in-use indicator
23) On hook dial
24) English / French / Spanish and Chinese language prompts option
25) Desk or wall mount
26) Hearing Aid compatible
27) Scratch-resistant matt finish
28) Compatible with PBX, Centrex, standard telephone service
29) Provide basic telephone service when a power failure

Technical specifications:
1) Dimensions (L x W x H): 23 x 18 x 13cm
2) Weight (kg): 0.85
3) Color: black or almond
4) Operating environment:
a) Dial: tone
b) Power: 9V DC transformer
c) LCD 168 x 32 pixel-graphical display with 4 Gray
5) Operating temperature: 0 - 45^oC
6) Storage temperature: -25 ~ +70^oC

VoIP:
1) Support SIP RFC3261, RFC3262, RFC3265
2) Codec: G.711A/u, G.7231 high/low, G.729
3) Echo cancellation: support G.168, and hand-free can support 96ms
4) Full duplex hand-free speakerphone
5) Support Voice Gain Setting, Jitter Buffer, VAD, CNGNAT transverse
6) Support STUN client
7) SIP support SIP domain, SIP authentication (none, basic, MD5), DNS
name of server, Peer to Peer
8) SIP support pubic/private server. Can connect to ISP and private
SIP server at the same time
9) SIP support dual public server
10) DTMF: support SIP info, DTMF relay, RFC2833
11) SIP application: support call forward / transfer / holding / waiting

Call control features:
1) Flexible dial map
2) Support Hotline
3) Empty calling no. reject service
4) Black list for reject authenticated call
5) No disturb
6) Caller ID

Networking:
1) WAN/LAN: support bridge and router model
2) Support basic NAT / NAPT
3) Support PPPoE for xDSL
4) Support DHCP client on WAN
5) Support DHCP server on LAN
6) Support DNS relay, SNTP client, firewall
7) Network tools in telnet server: including ping, race route and telnet client

QoS:
DiffServ/IP precedence; IEEE 802.11e (to be supported)

Management:
1) Boot monitor
2) Can upgrade firmware through boot monitor
3) Can config. through Web, keypad, Telnet
4) Can upgrade firmware and configuration file through HTTP, FTP, TFTP
Sys log
5) Note: functionality of some features may need phone system support

Package contents:
1) Q710 telephone, handset, and stand
2) Handset cord
3) Line cord
4) User guide
5) Power supply transformer is included