@Cata, details of True MPLS connection please see as below.
Today I'll try to sent you as soon as posible the PRI quotation from TT&T. Yesterday, I can contact and discussed with CAT telecom about telephone line for comparison the cost.
They're checking the distance to making the quotation. They are owner main cable that Cs loxinfo used for provide to us (customers line).
In my plan, I need to move this line to new factory and I think it must be better if CAT provide PRI line and SDSL line by the same optical fiber to new factory. It should be better for installation cost.