WIFI IP Phone with 4 SIP lines, SMS, PoE, 3-way Conference

VoIP SoC n: CPU Core: MIPS24KEc@ 360MHZ

Flash n: 8MBytes Flash
RAM n: 32MBytes SDRAM
Display n: 128×64 Graphic LCD with white back light

Phone Keys:
4 soft keys
4 Line keys with red-green dual color LEDs for indication
MENU, SMS, HOLD
Volume+, Volume- and navigate key MUTE
Headphone, Hands free
12 Dialing Buttons (0~9, *, #),
Power Supply: AC/DC Adapter
AC Input: 100~240V, 50~60Hz
DC Output: 5V, 1A
IEEE802.3af PoE in WAN port (M2 only)

I/O Interfaces:
2 RJ-45 ports (Ethernet 10/100 Base-T)
3.5mm earphone jack
3dB internal antenna for 802.11n 1T1R
Full duplex hands-free speakerphone

Audio Codec:
G.711 (A-Law, μ-Law) with PAMS above 4.3
G.723.1
G.729A/AB with PAMS above 4.0
Adaptive Jitter Buffer Management
Voice Activity Detection
Comfort Noise Generation
Echo Cancellation

Protocols:
SIP V2 (RFC 3261,3262,3263,3264)
Backward Compatible with RFC2543
Session Timer (RFC4028)
SDP (RFC2327)
RTP/RTCP (RFC1889 and RFC1890)
NAPTR for SIP URI Lookup (RFC2915)
STUN (RFC 3489)
ARP/RARP (RFC 826/903)
SNTP (RFC 2030)
DHCP server and client
HTTP Server for Web Management
TFTP/HTTP/HTTPS for Auto Provisioning
Message Waiting Indicator (RFC3842)
DHCP Option Codes for SIP (RFC3361)
DNS/DNS SRV (RFC1706 and RFC 2782)
IEEE802.1Q VLAN/802.1p and IP TOS

Phone Feature:
Customized Ring Tone
SMS (100 records)
Call History ( 180 records )
Most Recently Missed Calls
Most Recently Received Calls
Most Recently Dialed Numbers
Phone book (500 records )

Applications:
SMS Function
MAC Address Cloning
SIP proxy redundancy: dynamic via DNS SRV, A records
Direct IP to IP calling
Alarm Clock
Day Light Saving
NAT Traversal: Traversal by STUN
Built-in NAT Router
VPN
QoS with Layer 2 and Layer 3
DHCP Server and Client
IP conflict detection
Support PoE comply with IEEE802.3af(optional)

Management:
Firmware Upgradeable
Web Management Interface
Password Management
Local and Remote Syslog (RFC3164)
Auto Provisioning: TFTP, HTTP and HTTPS
SNTP Time Synchronization
Multi User Level
SNMPv2
TR069

Call Features:
4 lines
Auto Answer
3-way Conference
Music on hold
Call Hold
Call Forwarding
Call Mute
Call Transfer
Call Waiting
Call Pickup
MWI
CID and CWCID
DTMF Relay: In-band, Out-band(RFC2833) and SIP Info
Full-duplex Speakerphone
Delayed Hotline
Redial
Dial Plan
Volume Adjustment
Handset/Headset, Speaker and Ringer

Environmental:
Operation Temperature: 0~50 Degree C
Storage Temperature: -25~ 85 Degree C
Relative Humidity: 10%~90% No Condensing
Shock: Up to 75cm (30 inches) `Drop upon Package

Dimension:
(L) 220 x (W) 187 x (H) 97 mm
602 g ( without package)