1 SIP line
HD voice
2.4" 320 x 240 color screen
Handset (HS) / Hands-free (HF) / Headphone (HP) / BT
Two charging methods: direct charging and cradle charging
Power adapter 5 DCV 1A
Economical and eco-friendly packaging
Industry standard certifications: CE/FCC
Call functions
Dial out / Answer / Reject
Mute / Unmute (microphone)
Call hold / Resume
Call waiting
Intercom function
Caller ID
Speed dial
Anonymous call
Call Forward (all / busy / no answer)
Call Transfer (attended / unattended)
Call Parking / Pick-up (requires server support)
Redial / Auto redial
Do Not Disturb (DND)
Auto answer
Voice mail (requires server support)
Local three-way conference
Phone functions
Supports 500 entries in phonebook
Network phonebook (supports XML/LDAP)
Call records (missed calls / incoming calls / outgoing calls / transferred calls, supports 100 entries)
Blacklist
Voice Message Waiting Indicator (VMWI)
Network time synchronization

Audio features
HD handset / hands-free
Wideband ADC/DAC 8KHz sampling
Narrowband codecs: G.711a/u, G.723.1, G.729AB, OPUS
Wideband codec: G.722
Full-duplex hands-free call, supporting Acoustic Echo Cancellation (AEC)
Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)
Packet Loss Concealment
Dynamic adaptive jitter buffer up to 300ms
DTMF: In-band audio, Out-of-band – DTMF relay (RFC2833) / SIP INFO

Physical Specifications
Screen display: 2.4" 320 x 240 color screen
Keyboard: 25 keys, including
5 function keys
4 navigation keys
2 soft keys
12 standard telephone number keys
2 volume control keys, increase/decrease (with three-color LED charging indicator)
1.5M USB charging cable
800mAh lithium battery
RJ9 headphone jack
USB charging port
Main chip: (MT6572)
DC input: 5V/1A
Power consumption: Standby – ~0.02W, Peak – ~0.48W
Operating temperature: 0~40℃
Relative humidity: 10~65%
USB interface charging base
Color: Black
Product size: 150X55X22mm (length x width x height)
Packaging size: 175X115X75mm (length x width x height)

Single-chip system, integrating all modules including Wi-Fi 2.4g, key management, LCD driver, codec, SIP protocol, etc., ensuring an average standby time of more than 5 days.
System customized based on Android OS, providing good software and hardware compatibility and function expansion.
Supports Wi-Fi 802.11 b/g/n and AP roaming with the same SSID, greatly expanding the product's usage space.
Supports SIP automatic deployment and firmware (configuration) remote upgrade, just like a smart phone.
Vibration motor and waist clip, 3.5mm headphone base and BT headphone support, suitable for industry applications and mobile office; Network-based PBX and PBX-free intercom function (optional).
Voice phonebook, hands-free dialing operation, supporting Chinese and English (optional).