Adding entries for CNIS won't change the outbound CID on a POTS trunk. If TWC is providing your trunks via 4 port modem, they may be able to MASK the outbound CIDs on trunks 2 thru 4, but they may not be aware or have the capability to do this. With some CLEC switches, placing the lines in a hunt group will force all the CIDs to match the pilot number, but this varies from provider to provider.

Sometimes the thoughts in my head get so bored, they go for a stroll through my mouth. This is rarely a good thing.