Wirless Standard: IEEE802.11b/g
Date Rate: 1-54Mbps
Frequency Band: 2.4GHz
Modulation Techniques: DSSS: CCK (11Mbps, 5.5 Mbps) / QPSK (2Mbps) / BPSK(1Mbps)
Transmit Power: >=17dBm
Sensitivity: < -76dBm@11Mbps (subject to the actual test value)
Coverage Range: Outdoors: 300m / Indoors: 50m
Security: WEP(64/128 bits) / WPA-PSK /WPA2/WPS
Auto connection: Support storing 8 AP settings and automatically searching and connecting loop

Audio G. 711&G. 729a/b
IP Configuration: Static IP / Dynamic IP (DHCP)
PTT: Support PTT cluster intercom (With Server Support)
One Key Alarm: Support SOS call (With Server Support)
SMS: Support English/Chinese short message and mass texting (With Server Support)
P2P: Support
Settings Protection: Password protection for setup menu
Ping function: Support
Keypad lock: Support lock and unlock
Flashlight: Support
Firmware Upgrade: WiFi wireless

Features
1. Data record
Phone book function, support setting individual ring tones.
Dialed calls;
Missed calls;
Received calls;
Support editing and storing record;
Quick search for phone book contacts;
Talk time indicator;

2. Call control
One key dialing;
Speed dialing;
Second dialing;
Call forward;
Call hold;
New call;
Call mute;

3. Dialing mode
SIP account dialing;
P2P dialing, I. E. IP address dialing;
(available without server)

4. Answer mode
Earpiece
Headsets

5. Ringing mode
Ring tone mode
Vibration mode
Ring + vibration mode
Loud ring tone with backlight flashes prompt

6. SMS
Chinese / English SMS editing, sending and receiving;
Custom group list;
SMS group sending;

7. Utilities
Stopwatch
Calculator
Calendar
Time display under power off situation / set time synchronization
Flashlight

8. PTT and SOS function
PTT cluster intercom
Pre-construction group call
Temporary group call
Temporary group callback
Person to Person call
SOS one-key alarm

9. PING test
Manually PING IP
PING network automatically
PING DNS automatically
PING SIP Server automatically
PING SIP Proxy automatically
PING STUN Server automatically

10. Firmware Upgrade
WiFi wireless

11. Power Management
Standby power indicator
Low power voice prompt

Charging mode:
Block-charger / Battery block-charger mode
Standard USB charging