My OBi110's Line port can detect PSTN ringing rightly every time but the phone port cannot ringing the call from PSTN rightly or the Line port cannot forward the call to Auto Attendent every time. Also I use a Linksys SPA3102 as server side, OBi110 as client side. When I make a call to SPA3102 through OBi110's phone port, it cannot send the second-stage dial out number to SPA3102 rightly.