The necessary equipment to start telephony?

Good afternoon.
Lord help the operators to answer the following question.
At the new facility has ATC Maksikom МХМ500 and gateway ELTEX TAU-16.IP (16 FXS) plus 50 ports with analog phones in the future. Do I need to do in this case Mexico or Elteks already have PBX functionality that is sufficient for the operation of telephony?
Probably a stupid question. Himself NetWorker, with the phone never worked, but there was such a problem. If there is not enough information to ask questions, please provide details.
Thank you all in advance.
June 10th 19 at 15:00
1 answer
June 10th 19 at 15:02
Despite the small number of descriptions to TK (like the lines come to you, what is the functionality of telephony is required - not clear), probably not enough of the functionality of the Elteks. And why do you Elteks? Why not do Maxicimam?

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