Question about echo training

Hello,

Quick question about echo training. Is echo training on a per-call basis? Or is there any sort of saved variables between different calls.

echotraining is per call. I believe you can use the fxotune utility (included with zaptel source) to calibrate a line more permanently.

The better is the calibration, your shortest the training need to be.
Here’s a link :

voip-info.org/wiki/view/Aste … adjustment