Cisco routers with dual WIC slot capabilities such as the 1800 and 2700 series routers can effectively terminate a T1 and ADSL simultaneously for a primary, back-up type configuration. In most cases, a T1 will be configured as the primary route and ADSL will serve as the fail-over route should the primary drop. The Cisco part numbers for the two WIC cards needed are as follows:
WIC-1-DSU-T1-V2 (terminates T1) WIC-1-ADSL (terminates ADSL)
