Voice over data communication system
Voice packet assembling/disassembling apparatus
Voice packet assembling/disassembling apparatus
Voice server for digital communication network
Voice signal converting device
Voice transmission method and apparatus in duplex radio system
Voice, data or both over one telephone line in a T-1 carrier sys
Voice/data digital, duplex link
Voice/fax digitizing rate negotiation for switched connection in
Voltage controlled oscillator for a transmission line communicat
Voltage setting apparatus in a multiplex transmission system
Volume control for digital communication system
VPI and VCI assignment system in ATM system
VT group optical extension interface and VT group optical extens