VS1000+1003 VoIP Speaker Phone - VLSI Solution
VS1000+1003 VoIP Speaker Phone - VLSI Solution
VS1000+1003 VoIP Speaker Phone - VLSI Solution
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<strong>VS1000+1003</strong> <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong>VSMPGHHList of Figures1.1 <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong> Demonstration Unit . . . . . . . . . . . . . . . . . . 53.1 The User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.2 VS1000+VS1003 <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong> State Machine . . . . . . . . . . . . 105.1 How to Connect an RS232 Adapter to <strong>VLSI</strong>’s <strong>VoIP</strong> Board . . . . . . . . . 185.2 Two Possible RS232 Jumper Configurations in Some Adapters . . . . . . 186.1 <strong>VoIP</strong> Conversation using Two Headsets . . . . . . . . . . . . . . . . . . . 206.2 <strong>VoIP</strong> Conversation Using Microphone and <strong>Speaker</strong>, No Echo Cancellation 216.3 <strong>VoIP</strong> Conversation Using <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong> with Echo Cancellation . . 217.1 <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong> Schematics 1/2 . . . . . . . . . . . . . . . . . . . . . 247.2 <strong>VoIP</strong> <strong>Speaker</strong> <strong>Phone</strong> Schematics 2/2 . . . . . . . . . . . . . . . . . . . . . 25Rev. 2.20 2009-12-07 Page 4(30)
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