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IAD does not process HOOKFLASH event

Publication Date:  2017-09-13 Views:  46 Downloads:  0
Issue Description

A calls B.
A is talking to B
A presses hookflash 2 times Expected result is A should get secondary dial-tone and B should be put on hold but the call released 

Alarm Information

- when pressing the hookflash there is no secondry dial tone appear but the call is released 

Handling Process

- collect the trace log for disconnected call to confirm it released directly 

- check Hooking up/down limit using command display devasi parameter 


Root Cause

- default Hook flash up/down limit is small values 

Solution

- Run the devasi parameter set 3 command to set the upper limit, and run the devasi parameter set 4 command to set the lower limit.

set upper value to the biggest
set lower to mini

devasi parameter set 3 80
devasi parameter set 4 2


END