TTMER34: VoIP traffic measurement on ADSL line
Control questions
You must give an answer to 5 questions at the beginning of the laboratory exercise. One
wrong answer will make the mark given to the measuring with one grade worse. Two or more
wrong answers will result a supplementary measuring!
- Delineate the model of the ADSL digital subscriber transmission system!
- Delineate line layer of the ADSL U interface (modulation, spectrum, main parameters)!
- Delineate channel layer of the ADSL U interface (bearer channels, transmission route)! What does dual latency mean?
- Delineate main parameters of the ADSL line layer!
- Explain, how can differ from each other ADSL over ISDN and ADSL over POTS?
- Delineate shortly, how can differ from each other Skype, H.323 and SIP?
- What is the role of the "supernode" in the Skype?
- Delineate process of the access of the Skype-client to the network!
- Skype uses different codec settings between two Skype clients, and at the call, that leaves the network. In what issues can they differ from each other?
- What the Skype API is used for?