Trunk-Direction - H3C MSR 20-20 Command Reference Manual

2676 C 175: E1
HAPTER AND
Description
Related command:
Example

trunk-direction

Syntax
View
T1 C C
ONFIGURATION OMMANDS
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.
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fxs-ground: Adopts the FXS ground start mode of digital LGS signaling.
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fxs-loop: Adopts the FXS loop start mode of digital LGS signaling.
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r2: Adopts ITU-T Q.421 R2 digital line signaling. This is the one most commonly
■
used.
Use the
timeslot-set
mode for it on the E1/T1 interface.
Use the
undo timeslot-set
By default, no TS group is configured.
Only after you create a TS group can you use the subscriber-line command to
enter subscriber line view to configure voice-related attributes.
subscriber line and cas.
n
The timeslot-set command 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.
# 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 timeslots timeslots-list { dual | in | out }
undo trunk-direction timeslots timeslots-list
R2 CAS view
command to create a TS group and specify a signaling
command to remove the TS group.