I have an odd one. 7400 running 4.98 with an svmi20i.

Full auto attendant. When calling in and hitting 0 it transfers to the reception station group 5101, all the caller hears is dead air then eventually it goes to the general mailbox. When dialing 5101 from the AA, same result. When dialing an actual extension, then the caller hears ringing.

I’ve checked the supervision levels and everything looks good. Not sure where to look past that. Tried comparing it with known working system and with my own lab system and can't duplicate it here.

Any help would be fantastic!

Cheers,