The guide seeks to include schools which comport with the principles of "Ex Corde Ecclesiae". Bosco argues that modern postindustrial life styles do not comport well with traditional practices. The system itself uses the basic d20 Modern format, modified to comport with the concept. Com21 named their cable modems "ComPort". Later (smaller) models of the ComPort modems didn't provide for a telephone module. All proprietary ComPort modems could be used on the platform. The early ComPort modems had also a module slot for a telephone module.