IP-telephony: the Main Digital Signal, Codecs, Bandwidth

Some conclusions about IP-telephony: the main digital signal, codecs, bandwidth

In the course of studying the materials for the CCNA Voice exam, the idea was has appeared to process the information obtained in the form of a separate article. Pursuing this two purposes: one mercenary – better to understand most of the studied material and put everything together in your mind; The second altruistic – to share the knowledge gained with those who are not very interested in it. (more…)