The invention concerns a method and apparatus for displaying closed caption information during trick mode playback. The filter cartridge and bowl are connected to each other by a flange on an end cap of the filter cartridge which fits into collar on the bowl to form a unitary construction. The first IC configures a second IC to change a pin assignment, so that the second IC interprets a signal sent on the timing pin by the first IC and received on the reassigned pin as a request to transmit a return signal. The AS can develop a time window for reusing the cached S-CSCF address based with policies.