I have Airtel broadband with land-line. Without connecting telephone line to broadband router, my telephone works properly. But when I connect tel line to router, my internet stops working and my telephone lines incoming call stops.But if I connect tel line directly to router and tel line is disconnected internet works properly. But that time also incoming calls stop working. I have Beetel 450BXI router. I can not use broadband and telephone at the same time now. What would be a problem? Is it connectivity prob at airtel or it is router prob? please help..