Communication Manager does not forward UUI data

Last Updated : Dec 30, 2013 |

Sometimes Communication Manager does not forward User-to-User Information (UUI) data, even though you receive no error message when you administer the Shared UUI feature.

The following are some reasons:

  • Network providers impose limitations on the user data length.

  • QSIG signaling and networks do not have the required user data length limits.

  • The data item priority field on the Shared UUI Feature Priorities page of the Trunk Group screen is left blank.

For more information about the rules that determine the capacity of user information, see information forwarding in Avaya Aura® Call Center Elite Feature Reference.

Solution

Before you begin

Use the display events command on a periodic basis to check if Communication Manager does not forward UUI data.

Procedure

  1. For Distributed Communications System (DCS), configure all ISDN trunks between Communication Manager servers or the remote voice messaging system in the D-channel mode.
  2. For each ISDN or SIP trunk with shared UUI, ensure that the UUI size does not exceed the network support limit.
  3. Verify that the trunk group options are correct for each configuration.
  4. If an application fails, check the administration screens to determine whether the application has the highest priority. Perform this step for tandem nodes and originating nodes.

    A tandem node can erase the UUI information from the originator. Passing UUI through a tandem node transparently does not apply to Communication Manager proprietary shared UUI procedures.