" On August/2001, the Wireless Number Portability Operations subcommittee (WNPO) has recommended that Wireless Service Providers subscribing for a connection to the NPAC use a different Service Provider ID (SPID) from the one used by their counterpart wireline entity side of the company. This recommendation is to allow the wireline and wireless entities in a company to use different sets of Business Days and NPAC timers in their profiles if necessary. "