The system of Classes of Service (COS) helps defining rights for one or another extension in the PBX or Centrex systems. For example, few groups require more space for storing voice messages, while other need the redirection of calls to cell phones, the third does not have to make calls outside of the office network. With the help of this system one can change and configure settings.
Infotel
Aurora Communications, Ltd. - is an international telecommunication operator. The Holding is founded in 1999 and now includes the following companies: Aurora Communications UK, Aurora Communications USA, Infotel Data Communications and TASS-INFO (joint ve
Read moreTop countries:
United States 1294
India 440
United Kingdom 425
Canada 348
Bangladesh 338
China 142
Pakistan 134
Australia 133
Spain 123 Russia 114View all countries