No, the connection is not actually lost. The BBS software waits for a RING message (or the RI signal if no RING message is configured) and answers with ATA. This is done this way to prevent the modem to answer an incoming call while maintenance tasks are running.
Downgrading to 3.30 solves the issue, so any chang(es) from 3.30 to 3.40 seems to be the culprit.
Downgrading to 3.30 solves the issue, so any chang(es) from 3.30 to 3.40 seems to be the culprit.