أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Try to compare NGN and SDH equipments and tell which one is rated high among customers?
NGN is as a whole Network based on IP, which has four layers i.e the access, core Network, Transport and Application Layer.
While SDH is basically a transmission system for carrying data connect with other OFS system in line or ring.
