Detailed Product Description

Digital trunking gateway:

ETG3000 series is a kind of digital VoIP Gateway based on embedded operating system. It supports standard SIP/H.323 protocol, with large-capacity carrier class telephone trunking gateway functions. Currently it supports 2 to 8 E1/T1 interfaces and can realize intercommunication with mainstream manufacturers softswitch system, and interwork with carriers local Telephone Exchange by PRI/SS7 interface.

Key Features

      Protocol interface: standard SIP 1.0/2.0,H.323 V4 protocol, PRI network side/user side, SS7 TUP/ISUP protocol.

      Voice codec: standard G.711,G.723,G.729A/B.iLibc, supporting voice quality guaranteeing technologies such as VAD(voice activity detection), CNG(comfort noise generation), Jitter Buffer and EC, Reducing time delay and distortion

      Hardware interface:2 FE0/FE1 interfaces connecting to L3/L2 exchange of IP metropolitan area network (MAN), also called business interface or network management interface, several E1/T1 interfaces (support two to eight E1/T1 interfaces)

      High compatibility: capable of intercommunicating with different manufacturers softswitch system.

      Carrier-class access equipment: multi-route control, interval control, call forbid, call number limit, number replacement.

      Security guarantee: as an embedded system it is reliable and stable, won't be disturbed by any virus and provides a good certification mechanism to protect user's interests.

      Hot standby: double power supplies ensure the system runs normally & reliably.