# EDT COURTESY Handoff

## Qualifiers:

ALL

<cabinet> <shelf> <slot> <port> (default port is 1)

## Purpose:

This command applies to the T1/E1 trunk resiliency feature. Use this command to test the configuration of the T1/E1 trunks on the secondary controller without taking the primary controller out of service and without dropping any calls in progress.

1. Enter this command on the primary controller. The primary controller waits until all the T1/E1 trunk circuits are idle before it passes control of the trunk over to the secondary controller.

2. Enter the EDT Show Resiliency command to check the resiliency status of the T1/E1 trunk circuits. Circuits that are in Courtesy Handoff mode are listed in "CHM" state.

3. Check the front panel of the primary controller. After control of the T1/E1 trunk has been passed to the secondary controller, the indicators on the T1/E1 Combo MMC should flash GREEN and RED.

4. Check the front panel of the secondary controller. The RED alarm indicator on the T1/E1 MMC should turn off and the GREEN status indicator should turn on steady.

   NOTE: Use the State command to determine if the trunk is busy. If the hand off doesn't occur because the trunks remain busy, you can force the trunk to the secondary by entering the EDT Forced Failover command. However, any calls in progress will be dropped.

5. Test the configuration of the resilient T1/E1 trunk by placing calls through the trunk while it is supported on the secondary controller.

6. Use the EDT Forced Failback command to return support of the T1/E1 trunk to the primary controller.

## Details:

- You must enter this command on the primary controller.

- You will receive an error message if you enter this command

- on the secondary controller

- without specifying the physical location ( PLID) of a T1/E1 Combo MMC card

- You can only issue this command from the Maintenance Commands form of the System Administration Tool. You cannot enter this command from the local telnet maintenance terminal (port 2023).

- When you issue this command, the specified circuit is placed in Courtesy Handoff Mode until the circuit becomes idle and is handed off to the secondary controller.

- You can cancel a Courtesy Handoff that is in progress by entering the

- EDT Cancel Handoff

- EDT Forced Failover, or

- EDT Forced Failback command.

- The Courtesy Handoff command overrides the Programmed Failback command (that is, when a Programmed Failback takes effect, busy circuits that are in courtesy handoff mode on the secondary controller will not fail back until you cancel the courtesy handoff and the circuits are idle).

- If you reset the primary controller, the Courtesy Handoff command is no longer in effect. In this case, trunk circuits that have already been handed off to the secondary controller will not fail back until the Programmed Failback command takes effect and the circuits are idle.

- The ALL qualifier applies the command to all resilient T1/E1 trunk circuits on the controller.

NOTE: Refer to the Resiliency Guide on the Mitel Customer Documentation site for instructions on how to install, configure, troubleshoot, and maintain T1/E1 trunk resiliency.

## Example:

### Entry: EDT COURTESY HANDOFF 6 1 2 1

### System Response:

2005-11-18 11:00:27 EDT COURTESY HANDOFF 6 1 2 1

If resiliency is not enabled for the trunk, the system response is

2005-11-18 11:00:27 EDT COURTESY HANDOFF Failed, Resiliency not enabled.

If you do not enter the command from the primary controller, the system response is

2005-11-18 11:00:27 EDT COURTESY HANDOFF Failed, must invoke from Primary Controller.

If the trunk is not connected to a T1/E1 Combo MMC, the system response is

2005-11-18 11:00:27 EDT COURTESY HANDOFF Failed, T1E1 Combo Module required.

If you enter the Courtesy Handoff command twice, the system response is

2005-11-18 11:00:27 EDT COURTESY HANDOFF: already in progress.

Related Topics

- EDT Show Resiliency

- EDT Forced Failover

- EDT Cancel Handoff

- EDT Force Failback

- Programmed Failback