A cellular telephone can be integrated in a base unit, and thereby used in addition to, or in place of a land line. Viewed from another perspective, a cellular phone or other communication device can be integrated with a communication network by at least temporarily coupling it to another cellular phone or communication device that was previously integrated with the communication network. Such a unit may integrate itself when coupled to a previously integrated phone by obtaining a MIN and ESN from the previously integrated phone. Such a unit may also provide access to non-integration information contained in the previously integrated phone, such as data related to contacts, tasks, and appointments.