digital trunking gateway 2-8E1/T1,support SS7/PRI
Product Description
Digital trunking gateway: ETG3000 series
ETG3000 series is a kind of digital trunking 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 two to eight E1/T1 interfaces and can realize intercommunication with mainstream manufacturers softswitch system, and interwork with carrier's local Telephone exchange by PRI/SS7 interface.
- 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.711A/U,G.723,G.729AB.iLibc, supporting voice
quality guarante eing technologies such as VAD (Voice activity detection),
CNG (Comfort Noise Generation),JitterBuffer and EC, reducing time delay
and distortion.
- Hardware interface: two FE0/FE1 interfaces connecting to L3/L2 exchange
of IP metropo litan area network (MAN), also called business interface or
network management interface several E1 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
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