722 > Narrowband codec: G. 726, iLBC > DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO > Full-duplex hands-free speakerphone with AEC. > VAD, CNG, AEC, PLC, AJB, AGC.
Directory > Local phonebook up to 1000 entries > Black list > XML/LDAP remote phonebook > Intelligent search method > Phonebook search/import/export > Call history: dialed/received/missed/forwarded. Display and Indicator > 132x64-pixel graphical LCD with backlight > LED for call and message waiting indication > Dual-color (red or green) illuminated LEDs for line status information > Intuitive user interface with icons and soft keys > National language selection > Caller ID with name, number. Feature keys > 3 line keys with LED > 5 features keys: message, headset, redial, tran, hands-free speakerphone > 6 navigation keys > Volume control keys. Interface > Dual-port Gigabit Ethernet >Power over Ethernet (IEEE 802.3af), class 2 > 1xRJ9 (4P4C) handset port > 1xRJ9 (4P4C) headset port. > Wall mountable > External universal AC adapter (optional)AC 100240V input and DC 5V/600mA output > Power consumption (PSU): 0.72-1.56W > Power consumption (PoE): 0.96-1.98W > Dimension(WDHT):209mm188mm150mm41mm > Operating humidity: 1095% > Operating temperature: -1050°C.
> Reset to factory, reboot. > Package tracing export, system log. Network and Security > SIP v1 (RFC2543), v2 (RFC3261) > NAT transverse: STUN mode > Proxy mode and peer-to-peer SIP link mode > IP assignment: static/DHCP > HTTP/HTTPS web server > Time and date synchronization using SNTP > UDP/TCP/DNS-SRV(RFC 3263) > QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP > SRTP for voice > Transport Layer Security (TLS) > HTTPS certificate manager > AES encryption for configuration file > Digest authentication using MD5/MD5-sess > OpenVPN, IEEE802.1X > IPv6.All questions/comments are routed to a mobile device, so you WILL receive a quick response! All items must include original packaging to receive a credit. The item "Yealink SIP-T23G Professional Gigabit SIP VoIP IP Phone PoE 3 Line T23G" is in sale since Wednesday, January 11, 2017.
This item is in the category "Computers/Tablets & Networking\Enterprise Networking, Servers\VoIP Business Phones/IP PBX". The seller is "speaker-supply" and is located in Austin, Texas. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Chile, Colombia, Costa rica, Dominican republic, El salvador.