3Com MSR 30, MSR 50 manual Trunk-direction, Related command subscriber line and cas

2676 CHAPTER 175: E1 AND T1 CONFIGURATION COMMANDS

timeslots-list: Timeslot range. Timeslots are numbered 1 through 31 for an E1 interface and 1 through 24 for a T1 interface. TS 16 for an E1 interface (or TS24 for a T1 interface) is used to transmit control signaling.

signal: Specifies a signaling mode for the TS group, which should be consistent with that adopted by the central office. It includes the following types of signaling:

■e&m-delay: Adopts the delay start mode of digital E&M signaling.

■e&m-immediate: Adopts the immediate start mode of digital E&M signaling.

■e&m-wink: Adopts the wink start mode of digital E&M signaling.

■fxo-ground: Adopts the FXO ground start mode of digital LGS signaling.

■fxo-loop: Adopts the FXO loop start mode of digital LGS signaling.

■fxs-ground: Adopts the FXS ground start mode of digital LGS signaling.

■fxs-loop: Adopts the FXS loop start mode of digital LGS signaling.

■r2: Adopts ITU-T Q.421 R2 digital line signaling. This is the one most commonly used.

Description Use the timeslot-setcommand to create a TS group and specify a signaling mode for it on the E1/T1 interface.

Use the undo timeslot-setcommand to remove the TS group.

By default, no TS group is configured.

Only after you create a TS group can you use the subscriber-linecommand to enter subscriber line view to configure voice-related attributes.

Related command: subscriber line and cas.

n The timeslot-setcommand is independent of the DSP resource (voice processing module, VPM). When no DSP resource is available, though IP calls cannot be placed, local TDM calls can still be placed. Therefore, you can configure this command even if no DSP resource is available.

Example # Create TS group 5, including TS1 through TS31 and using R2 signaling.

<Sysname> system-view

[Sysname] controller e1 1/0

[Sysname-e1 1/0] timeslot-set 5 timeslot-list 1-31 signal r2

trunk-direction

Syntax trunk-direction timeslots timeslots-list{ dual in out }

undo trunk-direction timeslots timeslots-list

View R2 CAS view