ALE-30h has a strong echo during analog trunk conversation

[MoniThor]

Hi all,
a couple of digital ALE-30h on TDM all have a strong echo during analog trunk conversation. Tried modifying the analog trunk transmission plan in "short line 04/05/06 mm" and this kinda remediates the echo, but it is still strong. Also modified GainUA_TAB, for decreasing gain, but still audible. The system is OXO Connect 5/030/004 and ALE-30h has 1.00.20, downloaded from the same OXO. Any ideas?

[frank]

Do you have a butt set to plug directly into your analog trunk and try it out?
Is it all analog sets? In which case you might be able to trace in the GD.
Best is to do what you did, change the line type to Short line (depending on CO)

[MoniThor]

Solved:
Upgraded OXO to the latest release and downloaded phones firmware via Terminals Downloading. All phones work fine now.