DID Digit Length Selection (Memory Block 1-1-20) Use this Memory Block to define the number of DID digits. Default: 3 8.3.2 DID Digit Conversion Assignment (Memory Block 1-1-21) Use this Memory Block to enable the DID Digit Conversion table. Default: NO 8.3.3 DID Digit Conversion Table (Memory Block 1-1-22) Use this Memory Block to assign DID numbers to ring at station numbers, closed number (plus outgoing digits), or tenant number. Default: Not Specified 8.3.4DID Forward Station Number for Busy Station or Undefined Digit (Memory Block 1-1-23) Use this Memory Block when the DID conversion Table is enabled to define where digits are routed when undefined or the station is busy. Default: NON (Not Assigned)