Review Questions
| 1: | What is the goal of the simplest VoIP home-office LAN components? |
| A1: | Answer: To enable reduction of long-distance and international telephone charges. |
| 2: | What do A-Law and Mu-Law describe? |
| A2: | Answer: How the dynamic range of a voice signal is compressed and expanded while minimizing noise. Mu-Law is more universal than A-Law. |
| 3: | What is a codec? |
| A3: | Answer: A codec is a coder/decoder that translates analog voice signals into a digital stream of data. Codecs can compress the signal to a very low bps digital stream. |
| 4: | Why use a VoIP PBX? |
| A4: | Answer: A VoIP PBX can bring together VoIP phones and PBXs in local and remote offices so that they function as one single, large PBX. This is especially good for call centers using telecommuters. ... |
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