PROTEI is an international telecommunication systems vendor operating in Middle East, Africa, Central Asia, Latin America, and Europe. PROTEI offers comprehensive solutions for building NGN/IMS, 3G, 4G/LTE, MVNO and Private LTE/5G network infrastructure. The product line covers all needs of network operators. PROTEI serves more than 400 renowned customers in over 45 countries to cater 250 million subscribers worldwide. The company works in accordance with the ISO 9001:2015.