LangZu is a leader in network solutions for the SOHO and small business particularly voice over internet protocol (VoIP) devices including IP phones, IP gateway adapters, USB phones and varies earphones. In addition to its products, LangZu provides a broad range of service offerings, including technical support services and advanced OEM and customizaiton services.
software function:
>>support DNS register
>>watchdog
>>support H.323 v4, MGCP, SIP and N2P protocols
>>support DHCP automatic distribution of parameters such as IP address
>>according with ITU-T standard signal, DTMF creation and detection
>>support G.711A/U, G.723.1 5.3/6.3, G.729/A/B/AB/GSM610 voice coding and decoding
>>support VAD, AGC, AEC, dynamic audio technique, affording the timbre as a common phone
>>support PPPoE protocol(using when accessed with ADSL, Cable Modem)
>>support multifarious network configuration, such as LAN, Wide City Network, Special Network, Telecom XDSL, Wide Network MODEM
>>fast dial
>>Full-duplex and freehand
>>volume of phone receiver and loudhailer can be adjusted all alone
>>un-answered call, received call and dialed call can be stored 80 apiece
>>setup with Brower(such as IE), Telnet, keyboard and LIPPTOOL software
>>support updating IP Phone program long-distance with IE or FTP mode
function and features:
>>phone book with 100 numbers
>>fast dial
>>dialing as a common phone
>>call transfer and call holding
>>volume adjusted conveniently
>>full-duplex and freehand
>>LCD screen background display
>>un-answered call, received call and dialed call query
>>include time display of each time zone
>>NET to PHONE hardware terminal
>>offer extended 10/100M HUB function
>>H.323, SIP, MGCP protocols are totally compatible
>>setup operation with keyboard concisely
>>automatic parameter config with OEM edition of each virtual operational merchant, plug and play
>>IP to IP and dot to dot communication
>>setup IE in Chinese and English
characteristic:
>>data memorizer: 2MB
>>program memory: 2MB Flash memory
>>network port: 10/100M Base-T
>>echo counteraction: G165 16ms
>>average network flux: 10-12k bit/s
>>voice delay (point-point): less than 100ms
>>phone power supply: DC 9V-12Vpower: 2.7W(max.)
>>power supply adapter: input AC 220V, output DC 9V-12V 500mA
