IPECS Release 5
Feature Description & Operation 5.0
4-5
4.6 CO LINE RELEASE GUARD TIME
Description
To assure that the PSTN switching equipment has sufficient time to restore to the idle condition,
the system will hold analog CO lines in a busy state to users after release of a CO line by a station.
The time between the station disconnect and when the system changes the CO line status from
busy to idle is the CO Line Release Guard time.
Operation
System
Operation of this feature is automatic.
Conditions
Programming
SYSTEM 1. CO Release Guard Timer (PGM 180-Btn 16)
Related Features
Hardware
4.7 CO RING DETECT
Description
The system incorporates timers for Ring-on and Ring-off durations to assure proper alerting.
When the duration of the ring signal exceeds the Ring-on timer, alerting will start. When the ring is
not present for a period exceeding the Ring-off timer, alerting will stop. This allows the system
Ring cycle detection to be matched to the many and varied PBX systems.
Operation
System
Operation of Ring detect is automatic.
Conditions
1. Ring On and Ring Off are assigned on a system basis.
2. The CO Ring Detect is applied to analog CO Lines only.
Programming
SYSTEM 1. CO Ring OFF Timer (PGM 180-Btn 17)
2. CO Ring ON Timer (PGM 180-Btn 18)
Related Features
Hardware
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