Basic function: 1¡¢Suitable for CDMA450MHZ or 800MHZ or 1900MHZ mobile network, number of UIM card that its number is offered by mobile network firms, realizing the local telephone¡¢domestic and international call. 2¡¢Incoming calls and outgoing calls check function. 3¡¢Pre-set the local code and IP special service number, add the IP number automatically while dialing the long distance call. 4¡¢Calculate conversation time function . 5¡¢Set all kinds of authorities about International¡¢domestic and local incoming calls . 6¡¢Telephone and its card lock each other. 7¡¢Hand-free and adjust volume function. 8¡¢The Melodious chord rings. 9¡¢Wide LCD screen, clock and signal display function. 10¡¢Furnish the back-up battery , while no external electrical power, converse continuously. Main features: 1¡¢Elegant appearance, meet the family and commercial people demands. 2¡¢The Perfect clear conversation quality. 3¡¢Search for the network apace , dial rapidly , strengthen the aerial, high sensitivity, no radiation to the human body. 4¡¢Discern the local call and long-distance call automatically while dialing. 5¡¢Hand-carry , move and use function. Specification: 1¡¢Protocol: CDMA Mobile Network 2¡¢Working Frequency:CDMA450MHZ/800MHZ/1900MHZ 3¡¢Size: 215mm¡Ã170mm¡Ã68mm 4¡¢Weight: < 1.0 kg 5¡¢Standby Time: 40 Hours* 6¡¢Calling Time: 180 Minutes* 7¡¢Interface: RS232 Support