BusinessPhone Communication Platform 4.0
Dialogs

## Extended Supervision

If the BusinessPhone works as a Least Cost Router in a network environment, it might be necessary to monitor the digital trunk lines of the system with a high accuracy, in addition to the standard supervision function of the BusinessPhone. This will prevent network problems caused by a failure of the BusinessPhone.

Furthermore, you can set the automatic restart options in case of a board failure. The way the restart option works, depends on the system version.

To access the dialog, open the “Maintenance” menu in the Configuration directory tree and click on “Ext. Supervision”.

Enable extended supervision |  | Check/uncheck this box to enable/disable the extended supervision. See Automatic Restart. |
Activation Delay |  | The delay can be defined to make sure that the exchange has been restarted properly and does not perform a second restart, e.g. because of a missing board. Enter an activation delay between 1 to 11 minutes (default = 5 min.). |
Supervision time |  | The supervision time indicates the period of time between the supervision of two different trunk boards. Enter a value between 5 and 60 seconds (default = 10 sec.). |

The following options are available:

#### Actions:

Submit |  | To submit the changes to the system. |
Reload |  | To reload the current settings. |

### Automatic Restart

#### Restart based on warning 10H

If a fatal error occurs on a board, BMS will perform an automatic restart. This watchdog restart causes a system restart in ASB 150 02 exchanges with a software older than Release12.

In systems with release 12 or higher, it depends on the programming of the command Enable Extended Supervision (see below) if only an individual board restart will be performed or a complete system restart.

- Connect the BMS to the system
- Select “Maintenance” in the Configuration tree view.
- Click on the “Ext. Supervision” menu option.
- Check or uncheck Ext. Supervision check box.

  Enabled (default) |  | The peripheral board will be restarted automatically. All boards will be supervised every minute to verify if they are still alive. |
  Disabled |  | The whole system will be restarted automatically. Every minute only a single board will be supervised to verify if it is still alive. |

An automatic restart is not performed for the following board types:

- BTU-A (A2)
- BTU-E
- BTU-C
- AUX-_
- VMU-D

#### Restart based on warning 97H

The central software of ASB 150 02 maintains a mechanism, where each peripheral interface board is supervised on a periodic basis. Every minute, a single interface board is polled to verify if it is still active. If the board does not respond in time, a series of additional poll attempts will be initiated. If all supervision attempts fail, a warning 97H, “Card Supervision Failure”, is generated. This warning code is classified as STOP by default. Therefore, a restart of the whole exchange will be initiated in order to resolve the error condition on the peripheral interface board.

For ASB 150 02 systems with release 12 or higher, it depends on the programming of the command Enable Extended Supervision if only the single board will be restarted automatically on a Card Supervision Failure or the whole system.

For more information, please refer to the document Maintenance Instruction(1541-ASB 150 02 Uen).

Revision: A © Ericsson Enterprise 2003