Tenders Are Invited For Telephone Services

To Provide Long-Distance And International Communications, The Providers Network Must Have Direct Channels To The Automatic Telephone Exchange. All Communication Channels Must Be Separated From Public Networks; Client Traffic Is Completely Protected From Unauthorized Access. Calculation Of The Connection Duration Begins From The Moment The “Subscriber Response” Signal Is Received From The Called Telephone Number Or Other Connected Terminating Device (Answering Machine, Fax Machine, Server, Etc.) And Ends After Receiving A Signal From Any Of The Two Subscribers.