Gateway equipment, system and method for implementing butt joint of trunks

Abstract

The invention discloses gateway equipment, a system and a method for implementing butt joint of trunks. The system comprises soft switching equipment, the gateway equipment and butt joint equipment, wherein the soft switching equipment is used for realizing corresponding service through signaling interaction with the gateway equipment; the gateway equipment is used for allocating time slot resources to signaling of different standards, encoding interoffice signaling forwarded by the soft switching equipment into standard signaling according to managed butt joint equipment information, and transmitting the standard signaling to the corresponding butt joint equipment according to an appointed time slot; and the butt joint equipment is used for receiving the corresponding standard signaling from the gateway equipment in the appointed time slot according to the time slot resource allocation information of the butt joint equipment managed by the gateway equipment. By the gateway equipment, the system and the method, different time slot resources are allocated to any standard signaling of an E1/T1 trunk, and a networking requirement that one trunk supports various types of standard channel associated signaling is met; therefore, finite trunk resources of the E1/T1 are used effectively.

Description

technical field [0001] The present invention relates to a gateway device of a public switched telephone network (PSTN, Public Switched Telephone Network) and a next generation network (NGN, Next Generation Network), in particular to a gateway device, a system and a method for realizing trunk line (TRUNK) docking. Background technique [0002] T1 and E1 are different physical connection interfaces in the digital network, and their links can use coaxial cables or optical fibers. Among them, T1 is an American standard with a bandwidth of 1.544Mbps; E1 is a European standard with a bandwidth of 2.048Mbps; private lines in my country generally use E1. [0003] The voice digital signal transmitted in E1 / T1 adopts Pulse Code Modulation (PCM, Pulse Code Modulation). For single-channel PCM, the system sampling frequency is 8000HZ, and the sampling interval is 128μs; the sampling interval is divided into multiple time slots (TS, Time Slot) for time allocation. The sampling interval ...

AI Technical Summary

Problems solved by technology

For some international channel-associated signaling with multiple branches, it is necessary to occupy multiple E1 interfaces to meet the demand, and the traffic carried by these international channel-associated signaling is small, which reduces the number of users of a single E1 interface. It cannot meet the needs of supporting multiple channel-associated standards and making full use of relay resources in the case of limited relay resources

Images