Invention Grant
US09420010B2 Voice over IP call setup progress indicator 有权
IP呼叫建立进度指示器

Voice over IP call setup progress indicator
Abstract:
A method and apparatus for providing voice over internet protocol (VoIP) call setup progress status comprising creating an indication associated with a call placed from a client VoIP device in a providing network, modifying the indication periodically based on call setup progress and presenting the modified indication.
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