UUI Treatment for ISDN trunks

Last Updated : Jun 06, 2013 |

About this task

You must select shared in the UUI IE Treatment field on the Trunk Group screen for outgoing and incoming trunks at the remote end if you use:

  • Shared User-to-User Information (UUI) Information Element (IE).

  • Supplementary service protocol other than b.

If you select service-provider in the UUI IE Treatment field, Communication Manager forwards the ASAI user data in a non-shared codeset 0 UUI IE when forwarding the other data as MSI.

In non-QSIG networks, use protocol options other than b to relay information. In QSIG networks and supplementary service protocol of type b, you must use shared UUI IE treatment to include the Adjunct Switch Application Interface (ASAI) user information with MSI transport.

Note:

For non-QSIG networks, if you use shared UUI IE and select y in the Send Codeset 6/7 LAI IE field on page 3 of the Trunk Group screen, you can send the Lookahead Information (LAI) data twice, unless you leave the priorities of the LAI Name and Other LAI data items blank. For QSIG networks, Communication Manager sends LAI data that exceeds the maximum ISDN message size.

For more information, see Avaya Aura® Communication Manager Screen Reference.

Procedure

  1. At the command prompt, type change trunk-group xxx, where xxx is the number of the trunk group. Press Enter.
  2. In the UUI IE Treatment field on page 3 of the Trunk Group screen, select shared if the trunk group is not connected to an early version of Communication Manager or you do not require the service provider functionality.
    Caution:

    For service provider functionality, you must select service-provider in the UUI IE Treatment field.

  3. (Optional) In the Maximum Size of UUI Contents field, type a number from 32 to 128 as the maximum User-to-User Information (UUI) size. The default field option is 128 bytes.

    You must administer the trunk groups to send the appropriate UUI size over connected networks. For example, if the public network supports only 32 bytes of UUI and you administer a number greater than 32, the network rejects the UUI.

  4. On the Shared UUI Feature Priorities page, which is applicable when you select shared in the UUI Treatment field, assign numbers from 1 to 6, where 1 is the highest priority. You can use the default field options.

    If you leave a field blank, the system does not send any information related to the field in UUI Information Element (IE). If the public network supports less than 128 bytes, you must determine which feature information to send in UUI IE and assign a high priority to the related field.

  5. Press Enter to save the changes.