Automatic Call-back
In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
It is is considered as one of the most prominent entity in the VoIP world. Company Digium has created it as a fully innovative approach to telecommunications. This company has delivered such software that enables people to configure a server and start to make calls.
Central Telegraph
JSC Central Telegraph is one of the leading carriers in Russia; its history is more than 150 years long. The history of Central Telegraph is closely related with the development of communication in Russia. Telecommunication technologies developed, the lif
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