发明名称 |
DYNAMICALLY ADAPTING THE TRANSMISSION RATE OF PACKETS IN REAL-TIME VoIP COMMUNICATIONS TO THE AVAILABLE BANDWIDTH |
摘要 |
A system and method for dynamically adapting the transmission rate of packets in real-time voice over IP communications to the available bandwidth. A real-time bandwidth monitor (RTBM) for VoIP applications senses the call path bandwidth between two endpoints of a VoIP communication and adapts in real-time the packet transmission rate to utilize that bandwidth. If sufficient bandwidth is available, the RTBM selects a low compression, low latency CODEC to offer best possible voice quality to the user. If the bandwidth is constrained, the RTBM degrades gracefully by switching to a high compression CODEC. On further bandwidth reduction, the RTBM increases the media frames per packet. Because the bandwidth reduction may be transitory, the RTBM constantly monitors the end-to-end available bandwidth so as to invoke the CODEC/frame per packet combination that provides the best quality of service (QoS) achievable over the current end-to-end available bandwidth. |
申请公布号 |
WO2005086964(A2) |
申请公布日期 |
2005.09.22 |
申请号 |
WO2005US08244 |
申请日期 |
2005.03.11 |
申请人 |
I2TELECOM INTERNATIONAL, INC.;AWAIS, ALI |
发明人 |
AWAIS, ALI |
分类号 |
H04J3/16;H04J3/22;H04L12/66;H04L29/06;H04W88/18 |
主分类号 |
H04J3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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