CPC-EX Version 1.0 supports all features of CPC-B Version 7.1 (with the exception of TSAPI support). In addition, CPC-EX Version 1.0 adds support for new features, including the 44-Series phones, Tl Networking, and ISDN. The CPC-EX card can be installed into an existing DBS cabinet, with no hardware modifications. CPC-EX software uses existing CPC-B programming addresses, with the same numbering. Additional addresses have been added for new CPC-EX features.