X4G

X4G

Key Note

4 SIP Lines
HD Voice
POE Enabled
X4: Two Network interfaces (10M/100M)
X4G: Two Network interfaces (10M/100M/1000M)
2.8 Inch Colour Display
2 LCDs (Main + DSS)
Handset(HS) / Hands-free(HF) / Headphone(HP) mode
EHS support for Plantronics headsets
Desktop / Wall-mount installation
Economical and Environmental friendly package

Downloads

X4G IP Phone – Datasheet

Main Features

4 SIP Lines
HD Voice
POE Enabled
2 LCDs (Main + DSS)
Handset(HS) / Hands-free(HF) / Headphone(HP) mode(EHS support for Plantronics headsets)
Intelligent DSS Keys
Desktop / Wall-mount installation
Optional External Power Supply Economical and Environmental friendly package
Industrial Standard Certifications: CE/FCC

Call Features

Call out / answer / reject
Mute / unmute (microphone)
Call Hold / Resume
Call Waiting
Intercom
Caller ID Display
Call Forwarding (Always/Busy/No Answer)
Call Transfer (Attended/Unattended)
Call Parking/Pick-up (depending on server)
Redial
Do-Not-Disturb (per line / per phone)
Auto-Answering (per line)
Voice Message (on server)
Local 3-way Conference
Hot Line

Phone Features

Phone Accessibility Control by User PIN
Intelligent Phonebook (up to 500 entries total)
Remote Phonebook (XML/LDAP)
Intelligent Contact Number Matching / Filtering
Call log (100 entries total, in/out/missed)
Voice Message Waiting Indication (VMWI)
Network Time Synchronization
Multi-language support in screen and web UI: English, Chinese(Traditional/Simplified), Japanese, Russian, Italian, Turkish, Germany, Dutch, Spanish, Hebrew, Polish, French etc.

Codecs and Voice Feature

HD Voice Microphone/Speaker (Handset/Hands-free, 0~7KHz Frequency Response)
Wideband ADC/DAC 16KHz Sampling
Narrowband CODEC: G.711a/u, G.723.1, G.726-32K, G.729AB
Wideband CODEC: G.722
Full-duplex Acoustic Echo Canceller (AEC) – Hands-free Mode, 96ms tail-length
Voice Activity Detection (VAD) / Comfort Noise Generation (CNG) / Background Noise Estimation (BNE) / Noise Reduction (NR)
Packet Loss Concealment (PLC)
Dynamic Adaptive Jitter Buffer up to 300ms
DTMF: In-band, Out-of-Band – DTMF-Relay (RFC2833) / SIP INFO

Network Features

Physical: 10/100Mbps(X4), 10/100/1000Mbps(X4G) Ethernet, dual bridged port for PC bypass
IP Configuration: Static / DHCP / PPPoE
Network Access Control: 802.1x
VPN: L2TP (Basic Unencrypted) / OpenVPN
VLAN
QoS

Protocols

SIP2.0 over UDP/TCP/TLS
RTP/RTCP/SRTP
STUN
DHCP
PPPoE
802.1x
L2TP (Basic Unencrypted)
OpenVPN
SNTP
FTP/TFTP
HTTP/HTTPS
TR069
RFCs:
354/1321/1350/1769/1889/1890/2131/2132/
2616/2617/2661/2833/2976/3261/3262/3263/
3264/3265/3268/3311/ 3489/3711/4346/4566/
5630/5865