Chapter 31. Digital Voice Port; Digital Trunk E1-R2 Features - Samsung Ubigate iBG3026 Configuration Manual

CHAPTER 31.
This chapter describes the digital voice port Features. The digital voice port
commands discussed in this section configure channelized T1 or E1
connections.

Digital Trunk E1-R2 Features

Digital Trunk T1-CAS Features
Digital Trunk E1-R2 Features
E1 R2 signaling is a generally used international signaling standard for PSTN
E1 trunk. A detailed specification for R2 signaling is included in ITU-T Q.400
to Q.490.
Digital E1 Trunk
E1 trunk working in TDM method has 32 timeslots(each timeslot is called as
DS0) One of R2 signaling working in E1 digital trunk is used as frame
synchronization of E1 trunk, and the other one is used for signal transmission
for R2 signaling. The remaining 30 timeslots are used to carry a voice in a
PCM mode.
31 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 0 1
© SAMSUNG Electronics Co., Ltd.
Digital Voice Port
E-1 timeslot
One E-1
(8 bits of data)
Frame
Figure 31.1 an E1 frame
Ubigate iBG3026 Configuration Guide
E-1
Trunk
489