ATO Trunk issue, When a call ended with an external user. and local IP Phone disconnects the calls. The called party does not detect the onhook.

Need to check the busy frequence information. And the modify it

Issue resolved

@Faiyaz , could you tell us how to solved this issue?

Firstly, need to check the Noise in the line and make sure the grounding is properly connected.
Secondly, make all the busy tone parameter detect on each analog port and set them accordingly.

In my case since i am using 3rd party soft client, we change the off-time from 0S to 3Seconds. issue resolved.

This post was last edited by Done at 2018-10-31 02:31.

This issuse has been resolved by author.

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The solution as below:

Firstly, need to check the Noise in the line and make sure the grounding is properly connected.
Secondly, make all the busy tone parameter detect on each analog port and set them accordingly.