TY - SER AU - Lassers, Harold TI - ISDN terminal portability in the RBOC networks KW - ANSI STANDARDS KW - COMPUTER INTERFACES KW - ISDN KW - INTELLIGENT NETWORKS KW - MANUFACTURING KW - PRINTERS KW - PROTOCOLS KW - STANDARDS ORGANIZATIONS KW - SWITCHES KW - TELEPHONY N1 - The differences in the initial ISDN switch implementations by different manufacturers are sufficiently profound that ISDN telephones designed for one switch may not be compatible with other manufacturers' switches. In addition, as new features are added to a given switch, older telephones may not be able to use them ER -