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* Compliant USB 1.1 specification Compliant with USB Audio Device Class Spec V 1.0 Compliant with USB HID Version 1.1 * Compliable with VoIP ( Voice over Internet Protocol ) solutions, such as Skype, MSN Messenger and Yahoo Messenger * Echo-eliminating for better sound quality * Skype hot key , table, up , down , 0 ~ 9 * # , off-hook , C , on-hook, Hold, Info. * Built in receiver and microphone * Buzzer function for incoming call alerts * Built in hot key functions to operate Skype software as easy as dialing a normal telephone * Supporting Skype ,X-Lite, Dialpad..software phone and SIP, H.323, MGCP protocol * Fully functional keypad enables you to make/receive calls even easier * Acoustically isolated speaker and microphone to eliminate echo Full-duplex communication with crystal clear speech * USB Interface PnP, No need driver,No external power/sound card required
供應來電顯示USB電話