SCH0400 - 0499
| SCH0400 | Wrong number of input fields for prompt SPRE. |
| SCH0401 | Directory number already exists. |
| SCH0402 | Directory number conflicts with existing number. |
| SCH0403 | Wrong number of parameters. |
| SCH0404 | Wrong number of parameters. |
| SCH0405 | Wrong parameter type. |
| SCH0406 | Ran route (or trunk) does not exist. |
| SCH0407 | Wrong number of parameters. |
| SCH0408 | Wrong number of parameters. |
| SCH0409 | Parameter out-of-range (0-30). |
| SCH0410 | Not equipped for RAN. |
| SCH0411 | Unable to match input field with stored mnemonics. |
| SCH0412 | Unable to match input with stored mnemonics. |
| SCH0413 | Wrong number of input fields. |
| SCH0414 | Input out-of-range (0-99). |
| SCH0416 | Wrong number of input fields. |
| SCH0417 | Illegal input number. |
| SCH0418 | Illegal input number. |
| SCH0419 | Wrong number of parameters. |
| SCH0420 | Incorrect number of input fields. |
| SCH0421 | Timer out-of-range. |
| SCH0422 | Wrong number of parameters. Action: Input expects one parameter. |
| SCH0423 | Unable to match input field with stored mnemonics. |
| SCH0424 | Wrong number of parameters, or an entry is required. |
| SCH0425 | Unable to match input field with stored mnemonics. |
| SCH0426 | Wrong number of parameters. |
| SCH0427 | Parameters out-of-range (0-7) or (0-15). |
| SCH0428 | This port is not a CDR device. Action: LD 17 should be used to define the proper device. |
| SCH0429 | Illegal number of digits. |
| SCH0430 | Invalid directory number entered for ACD NCFW or IFDN. Action: Try another DN. |
| SCH0431 | ICI appearance out-of-range (0-9 or 0-19). |
| SCH0432 | Invalid ICI keyword. |
| SCH0433 | CAT is out-of-range (0-99). |
| SCH0434 | ID is out-of-range (0-9). |
| SCH0435 | Not equipped for ANI. |
| SCH0436 | Wrong number of parameters. |
| SCH0437 | Unable to identify parameter to given prompt. |
| SCH0438 | M3C allowed only if signaling is NT5. |
| SCH0439 | ICOG not valid for this trunk type. |
| SCH0440 | Wrong number of input fields for prompt LSNO. |
| SCH0441 | List number out-of-range, or the number of speed call lists is out-of-range. Prior to Release 17 the range is 0-253. With Release 17 and later, the range is 0-8191. |
| SCH0442 | List number already exists. |
| SCH0443 | List does not exist. |
| SCH0444 | Route number for ICI does not exist, or route contains no members. |
| SCH0445 | The group member number is out-of-range. Action: Enter 0-5 for Option 11. Enter 0-19 for all other machines. |
| SCH0446 | DN size is out-of-range (4-31). |
| SCH0447 | Wrong number of input fields for prompt DNSZ. |
| SCH0448 | New DN size is smaller than current size. |
| SCH0449 | List cannot be service changed while active, try later. |
| SCH0450 | Wrong number of input fields for prompt SIZE. |
| SCH0451 | Speed call list size illegal (1-1000). |
| SCH0452 | List size is too long for given DN size. |
| SCH0453 | New list size is smaller than current size. |
| SCH0454 | Customer list for group n does not exist. |
| SCH0455 | Group is not defined. |
| SCH0456 | Group already exists. |
| SCH0457 | Wrong number of input fields for GRNO. |
| SCH0458 | Group number out-of-range (0-63). |
| SCH0459 | Group member does not exist. |
| SCH0460 | Wrong number of fields in input. |
| SCH0461 | Key number out-of-range (0-size). |
| SCH0462 | Too many digits in input field (max 15). |
| SCH0463 | Attempted to enter a RAN route that was not previously defined as AWR in the AUX_CUST_DATA_BLOCK. |
| SCH0464 | RAN or Conference loop cannot be removed or changed while Wake Up calls are in progress. |
| SCH0465 | Wrong number in input field for AWU. |
| SCH0466 | Unable to match input with stored mnemonics (YES/NO, {CR}, X). |
| SCH0467 | RANF and RAN1 must be defined for all cases. Action: RAN2 must be defined if R2BN is different from R2ED. |
| SCH0468 | Attempted to remove a nonexistent AUX_CUST_BLK. |
| SCH0469 | Second RAN hr/min value out-of-range. |
| SCH0470 | Wrong number of fields for 2nd RAN (begin or end). |
| SCH0471 | Station type conflicts with existing card. |
| SCH0472 | Terminal already exists. |
| SCH0473 | SL-1 telephones cannot be moved between loops. |
| SCH0474 | Sets cannot be moved between loops. |
| SCH0475 | Trunk units cannot be moved between loops. |
| SCH0476 | Cannot move a unit from one loop to another. |
| SCH0477 | Both values must be given. |
| SCH0478 | Lower value must not exceed upper value. |
| SCH0479 | Flash timer must be less than PBX_DISC_TO. |
| SCH0480 | Timer value out-of-range (45-768). |
| SCH0481 | Route number out-of-range (0-31). |
| SCH0482 | Route data block already exists. |
| SCH0483 | Code restriction block does not exist. |
| SCH0484 | Code restriction block already exists. |
| SCH0485 | No ROA is provided on this RICI key. |
| SCH0486 | Wrong number of input fields for prompt PHDT. |
| SCH0487 | Input field is out-of-range. |
| SCH0488 | ROA package not equipped. |
| SCH0489 | Second RAN time out-of-range (0-2044). |
| SCH0490 | Wrong number of input fields for prompt TOCU. |
| SCH0492 | Customer data block already exists. |
| SCH0493 | Customer number out-of-range. |
| SCH0494 | NFCR tree already exists. |
| SCH0495 | Null not allowed for NFCR tree number except for PRT. |
| SCH0496 | NFCR tree number is outside range (above MAXT). |
| SCH0497 | NFCR cannot be active for RLS. |
| SCH0498 | Entered digit too large for NFCR count field. |
| SCH0499 | Another parameter expected for FRL/CRCS prompt. |