Thats One-For-All(OFA), a brand of remote. Cab is short for Cable, a device key on the one the OFA remote where you'll find code 1187. But that code isn't in a OFA remote, uyou need to call to have it loaded over the phone. To such models as URC-8910, urc-9910, or urc-9960.

Once you have one the models above you call the phone # in the manul they will go through the steps to have it upgraded. Tell them your model of cable box, allow them to suggest codes, if they don't give you 1187, ask for it to be added to ones they came up.