Busy Tone Detect - Avaya Nortel Communication Server 1000 Reference

Pulse length

Busy tone detect

Busy tone is sent by the Central Office to indicate the release of an established call.
Detection limits
The NTCK16AX and NTCK16BX generic Central Office trunk cards can detect busy tone within
the following limits:
Level
Cadence
Loss switching
The Generic XFCOT is based on the XFCOT design, which is using a static pad download
algorithm by default for its loss plan.
The generic XFCOT has to be set explicitly to a Dynamic Pad Switching mode to make it
compliant with the standard North American Dynamic Pad Switching mode.
Therefore the following steps must be followed when the Generic XFCOT is installed:
1. Define Loss Switching mode. Respond to the prompts in LD 97 as shown.
Circuit Card Reference
Frequency
Table 250: LD 97 - Defining Loss Switching mode.
Prompt Response
REQ: CHG
TYPE: SYSP
...
NATP YES
Note:
The pack should not be used to detect
levels of 1100 mVrms or greater a Tip and
Ring, as this may result in noise.
Dependent on PPID – see LD 14
400 to 620 Hz
–30 to 0 dBm
See on Trunk Data Block
Description
IPE system parameters configuration
Select North American transmission plan.
Applications
on page 577.
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