For IP-BSC protection now a days two route for protection not sufficient as fiber cut incident is very frequent in some areas. As the third fiber route not connected with IP-BSC; I have given plan with Huawei MW and OSN a 3rd layer protection for IP-BSC. From BSC to MSC optical fiber ring is connected through OSN. I have successfully integrated a RTN MW link as a third connectivity and given plan for higher cost at switch end. Please have the scenario diagram mention in attached photo. Thus the BSC never will get down.

Seems interesting, would you please provide more details of this activity.

Good work