Direct Inward Dialing Support. This function is offered by telephone companies with the goal that ATC clients could connect all range of company numbers to one or several lines. The aim is to give a personal number to every employee without having to connect it to a separate phone line. Thus, all telephone traffic can be divided and controlled more efficiently.
Elmer Sinaza is a provider of TDM and VoIP phone calls. Using most recent technologies and extensive relations, Elmer Sinaza permits to cut the costs of phone calls considerably.