Imass Telecom United Kingdom

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General office

Imass Telecom
75 Blackfriars Road
London
,SE1 8HA
United Kingdom

Phone: +44 207 401 4220

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Classes of Service

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.

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