ISP stands for Inside Plant and OSP stands for Outside Plant. According to Building Industry Construction Service International (BICSI), OSP is any network infrastructure installed external to buildings. Our scope includes optical fiber cabling, balanced twisted-pair cabling, and support structures to link locations.
OSP cables are underground, direct-buried, or aerial. ICG specializes in direct-buried which utilizes trenches, pedestals, and communication maintenance holes.
ISP refers to cable installed inside of the building. This includes everything from the patch panel, patch cord, and switch to the cables and jacks.
Each may require a different type of cable and a different method of installation. ISP utilizes wall and ceiling drops, while OSP will likely require trenching.