TG-20E1 is a next generation intelligent VoIP gateway, designed for companies, telecom operators and various industries. Focusing on a maintenance concept, manageable and operable, TG-20E1 has a high integration and great capacity. Provides VoIP and Operator Quality FoIP. Services, as well as value-added functions such as modem and voice recognition. In this way, it builds a flexible, high-performance, future-oriented communication network for users. TG-20E1 supports a series of signaling protocols, interconnecting between SIP and traditional signals such as SS7 and PRI. It supports multiple encoding methods, offers signal encryption technology and intelligent speech recognition technology, and improves the efficiency of transport resource utilization, while ensuring voice quality. The trunk gateway is ideal for several access networks of SMEs, call centers, telecom operators and large enterprises