2016 new model!low cost Voip ip phone c
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Contact NowHD voice wireless ip phone cheap compatible grandstream yealink wifi sip phone IP622W
• SIP V2.0 (RFC 3261, 3262, 3263, 3264)
• 2 10/100M RJ45 ports,2 Line-Keys & 2 SIP accounts
SIP Desktop Wireless Phone, built-in 802.11n 1T1R 150Mbps
• Wireless working frequency 2.4G
• 128*64 graphic LCD with white backlight
• 4 software defined keys for LCD menu
• 10 multi-function keys with green/red dual-color LEDs
• Compliant with IEEE802.3af Power over Ethernet(PoE)-Optional
• Handset jack and Wall-mount supported
• HD Voice and HD Codec G.722 supported
P622C Specification
Audio Codec Features
G.711(A-law, u-Law)with PAMS above 4.3
G.729A/AB with PAMS above 4.0
G.723: 5.3kbps and 6.3kbps
G.722(high quality)
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/PPPoE
HTTP Server for Web Management
TFTP/HTTP for Auto Provisioning
Message Waiting Indicator(RFC3842)
DNS/DNS SRV (RFC1706 and RFC 2782)
IEEE802.1Q VLAN/802.1p and DSCP
Management
Firmware Upgradable
Web Management Interface
Local and Remote Syslog (RFC3164)
Auto Provisioning: TFTP, HTTP
SNTP Time Synchronization
Multiple User Level Configuration
SNMPv2
TR069
Applications
MAC Address Cloning
SIP proxy redundancy: dynamic via DNS SRV, A records
Direct IP to IP calling
NAT Traversal: Traversal by STUN
Built-in NAT Router
QoS with Layer 2 and Layer 3
DHCP Server and Client
IP conflict detection
Support PoE comply with IEEE802.3af(optional)
Call Features
2 lines
Auto answer
3-way Conference
Music on hold
DTMF Relay: In-band, Out-band and SIP INFO
Call Hold
Call Forwarding
Call Mute
Call Transfer: blind transfer and attended transfer
Call Waiting
Caller ID and call waiting ID
Speed Dial
Full-duplex Speakerphone
Delayed hotline
BLF
Pick up
Call Park
Dial Plan
MWI
DND
Call log: redial list, answered calls and missed calls
Volume Adjustment: Handset, Speaker and Ringer
Black List
DTMF Relay: In-band, Out-band and SIP Info
Phone Features
Customized Ring Tone
SMS(100 records)
Call History
-Most Recently Missed Calls
-Most Recently Received Calls
-Most Recently Dialed Numbers
Phone book(100 records)
Speed Dial(10 records)
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