Panasonic T-SMART DBS-EX23-530 Reference Manual page 116

Section 530-ISDN Ref.
Programming Considerations
None
System Speed Bins 257- 500 Unavailable
Previously, if a System Speed Dial (SSD) number of 257 or greater was used,
System Speed Dial numbers 001 through 256 were reprogrammed. System
Speed Dial Bins 257 - 500 are now available.
Programming Considerations
None
DBS-2.3-400 DBS Manual - Revised April 2000
Appendix A. CPC-EX 2.3 Feature Update
Page A-26