Do you know what version you have now? I believe that all of the Triad -s supported at least 100 system speed dial bins, although they may have been three-digit. Or are you looking for station speed dial? If you're a vendor, you'll find most of the system docs readily available on the inter-webs. Changing the Program Module may require other changes in the system, or maybe default and reprogram, depending on initial version and final version.