I'm at the site now and I was able to do the calibration the first time on trunk 1, it went through the procedure and ask me if I wanted to copy & I pressed 1 for yes and did a system reset, I went back in to try again and all I keep getting is an Error when I try the calibration.

I'm getting loud side tone, I can hear myself talk during a call, I tested directly off the LEC and it sounds fine, I replaced LEC dialtone with my dialtone simulator & also looping in an analog station port with no change.

The customer has all DT 900 series IP phones and I'm currently trying to find out if and where I can manually adjust the side tone on the phones.

Any suggestions would be appreciated on this Saturday afternoon