We are running 3CX with an Audiocodes MP-118 at a remote site, when they try to call headquarters, the autoattendant does not pick up. Not that it matters, but we have a NEC pbx at headquarters. This is only happening for the remote site. I can disconnect the MP-118 and plug in an analog phone, and the autoattendant picks up with no problem. But for some reason, everytime they call using 3CX, the autoattendant does not pick up. I know it has to be some line setting on the audiocodes, but there are way too many options to guess. Anyone got any ideas of what I can try?