SCH0600 - 0699
| SCH0600 | Illegal input character. |
| SCH0601 | Warning: The system may Initialize, and data corruption may occur. Out of unprotected data store. |
| SCH0602 | Out of Protected Data (PDATA) storage. Action: Increase memory before doing any service change. (A sysload can reduce memory fragmentation and increase usable protected memory.) |
| SCH0603 | Warning: Unprotected data store below safety limit. Action: Increase memory before making any service change. |
| SCH0604 | Warning: Protected data store below safety limit. Action: Increase memory before making any service change. |
| SCH0605 | Not enough protected data store to allocate History File. Followed by requested size and actual size allocated. |
| SCH0606 | LND option package restricted. |
| SCH0607 | Remove DTI clock controller loop first. |
| SCH0608 | 7VOD and 7DTA responses are only allowed for Euro interfaces with ETS 300 and 403
implementation. Action: Configure a Euro route with ETS 300 403 implementation. |
| SCH0609 | The response NI22N is not allowed is the MMCS or Master Mode or NI-2 packages are not
equipped. IFC is reprompted. Action: Equip packages 309, 317 or 291 and reload. |
| SCH0610 | Multi-customer option package restrict. |
| SCH0611 | Option package not equipped. Action: Enable System Speed Call package. |
| SCH0612 | AIOD package restricted. |
| SCH0613 | {CR} is an invalid input for this prompt. |
| SCH0614 | Use OUT to remove all users. |
| SCH0615 | DES input out-of-range (6-digit alphanumeric). |
| SCH0616 | DES input contains an invalid character. |
| SCH0617 | DES must be entered if LD 10 or LD 11 is new. |
| SCH0618 | No system date exists. |
| SCH0620 | Input number out-of-range. (Overlay 15) Action: Re-enter input. |
| SCH0621 | Service change not allowed from maintenance set. |
| SCH0622 | Wrong number of parameters given. |
| SCH0623 | Not enough internal workspace to process this request. |
| SCH0624 | Not equipped for MUSIC. |
| SCH0625 | Route specified is not a MUSIC route. |
| SCH0626 | Key assignment conflicts with CLS (LND or SND). |
| SCH0630 | Wrong number of parameters. |
| SCH0631 | Invalid command. |
| SCH0632 | System conversion error message. Action: Contact your technical support group. |
| SCH0633 | System conversion error message. Action: Contact your technical support group. |
| SCH0634 | System conversion error message. Action: Contact your technical support group. |
| SCH0635 | System conversion error message. Action: Contact your technical support group. |
| SCH0636 | System conversion error message. Action: Contact your technical support group. |
| SCH0637 | System conversion error message. Action: Contact your technical support group. |
| SCH0641 | Loop number out-of-range (0-159). |
| SCH0642 | Loop not defined in the configuration. |
| SCH0643 | Loop shelf not defined in the configuration. |
| SCH0644 | Attempt to exchange local and remote shelves. |
| SCH0645 | Incorrect number of parameters. |
| SCH0647 | Shelf number out-of-range (0-3). |
| SCH0648 | Card number out-of-range (1-10). |
| SCH0649 | Attempt to move card more than once. |
| SCH0650 | Mnemonic TO not entered. |
| SCH0651 | Message Waiting package not equipped. |
| SCH0652 | MCD key must be assigned to key 0. |
| SCH0653 | Key 0 must be defined as MCD to assign MIK/MCK. |
| SCH0654 | MIK/MCK cannot be assigned to key 0. |
| SCH0655 | MWK cannot be key 0. |
| SCH0656 | MWK cannot be assigned because telephone has MCD key. |
| SCH0657 | Message center option must be enabled in LD 15. |
| SCH0658 | Invalid DN type for MC DN. |
| SCH0659 | MWK key already defined for this station. |
| SCH0660 | Group DND package restriction. |
| SCH0661 | Incorrect number of parameters. |
| SCH0662 | Unable to match input with stored mnemonics. |
| SCH0663 | Group number out-of-range (0-99). |
| SCH0664 | Group does not exist. |
| SCH0665 | Group already exists. |
| SCH0666 | The loop entered is not a DTI/PRI loop (LD 73). |
| SCH0667 | ICS data associated with the loop is removed (LD 17). |
| SCH0668 | Group already has maximum number of items (127). |
| SCH0669 | Group contains secondary group. |
| SCH0670 | DN does not exist. |
| SCH0671 | DN is not a station. |
| SCH0672 | Sub-group does not exist. |
| SCH0673 | DN or sub-group to be removed is not found. |
| SCH0674 | Group cannot contain itself as a member. |
| SCH0675 | Group cannot contain itself as a member. |
| SCH0676 | Group cannot be it’s own subgroup. |
| SCH0677 | FWA package #338 is not equipped. |
| SCH0679 | Missing DPI L/W from disk. |
| SCH0680 | Invalid terminal type for a DMSX superloop. |
| SCH0681 | Invalid response to REQ prompt. |
| SCH0682 | No customer has route selection for ANI yet. |
| SCH0683 | Protected memory is running low. |
| SCH0684 | The response to a TYPE prompt must be RSA. |
| SCH0685 | CUST may be null only when request is PRT. |
| SCH0686 | Response to CUST out-of-range 0-31. |
| SCH0687 | NEW request made for a customer who already has RS-ANI. |
| SCH0688 | Specified customer does not have RS-ANI. |
| SCH0689 | RS-ANI access code (RSAC) may not begin with digit 0. |
| SCH0690 | Given RSAC conflicts with another existing access code. |
| SCH0691 | RSAC response null during a NEW request. |
| SCH0692 | Invalid null response to 0-RT, 0+RT, 1RT, or CORT prompt. |
| SCH0693 | No such trunk route access code exists. |
| SCH0694 | Special purpose trunks cannot be used for RS-ANI. |
| SCH0695 | Too many digits in access code. |
| SCH0696 | Access code must specify a local (CO) trunk group. |
| SCH0697 | Unable to get protected memory. DN tree may become bad. |
| SCH0698 | Illegal attempt to modify existing data. |
| SCH0699 | RS-ANI package not present. |