i haven't a PTSN line on OBI110 , just use the 2B only , now i can just pick up my phone which direct connect to OBI110 and make a call by using 2b , and i direct call my 2b number , the phone will ring and all working fine , but when i using ObiApp (android and iphone or PC) , i can't use SP1 to calling out , i have a try many time but fail , i have try *2+HK phone No. and AA but no luck on it  |