User Guide
T1/E1 configuration guide
41
Clear Backward Guard Time (t7)
This parameter is used to set the time needed to recognize as clear backward
signal.
To be recognized as clear backward signal, the value of signaling bit must be
maintained and unchanged for a certain time (clear backward guard time) after
receiving clear backward signaling bit in CAS line signaling.
MAX:/CONFIG/R2>change t7 <value>
The option value can be selected from 0 ms 1000 ms.
Release Guard Time (t8)
This parameter is used to set the time needed to recognize as release guard
signal.
The voice channel must be maintained in idle state for a certain time (release
guard time) between release state and seizure state.
MAX:/CONFIG/R2>change t8 <value>
The option value can be selected from 0 ms~ 1000 ms.
Reanswer Guard Time (t9)
This parameter is used to set the time needed to maintain for a certain time
(reanswer guard time) after receiving answer signaling bit preceded by clear
backward signal in CAS line signaling.
MAX:/CONFIG/R2>change t9 <value>
The option value can be selected from 0 ms to 1000 ms.
Release Wait Guard Time (t10)
This parameter is used to set the time to wait until the channel is released after
sending clear forward in CAS line signaling.
If the channel is not released within this time, it will be blocked.
MAX:/CONFIG/R2>change t10 <value>
The option value can be selected from 0 ms to 1000 ms.
Block Detect Guard Time (t11)
This parameter is used to set the time needed to recognize as block signal.
To be recognized as block signal, the value of signaling bit must be maintained
and unchanged for a certain time (block detect guard time) after receiving block
detect signaling bit in CAS line signaling.
MAX:/CONFIG/R2>change t11 <value>
The option value can be selected from 0 ms to 1000 ms.
