We have live setup.
1)14 Locations are directly connected with cisco 3845 router.
2)For voice communication, one of VWIC2-2MFT-E1/T1 port in router 3845 is integrated with diffrent make EPABX.same setup is working remote locations.
3)All data and voice functioning ok.
4) Now i have to add more cisco 3845 router back-to-back with previous router for load balancing.
5) i have tested some links by shifting with new cisco 3845 router.Data is working fine.
6)I'm able to call any other remote location.
7)The remote locations (that are in new cisco 3845 router )are able to call all other locations except my location(where both routers are back-to-back connected.
Kindly tell me how can i make it possible that all remote locations which are connected new cisco 3845 router(In which VWIC2-2MFT-E1/T1 card is not configured).