# Genesys Quality Management Suite 8.1.520 : Selecting the T-Server Agent Identifier to be Stored with Couples

Navigate to Settings > Configuration > Protocol Drivers > Genesys Driver. Scroll down.

The default User Name provides a unique agent identifier and is the best option for new installations.

Previous versions of Genesys Quality Management Suite used identifiers that may be repeated in other locations. Change the identifier to User Name as soon as it is convenient. This prevents two or more agents from having the same ID.

Many calls may be stored using the previous identifiers. By selecting the previous identifier Quality Manager can continue to use the same agent identifiers stored with previously recorded couples without updating the database immediately. A script is available to update all the identifiers used in stored calls and the database to use the unique User Name.

Select the T-Server agent identifier to be stored with couples from the dropdown list. The options are:

- Unmodified T-Server value. This uses the default T-Server identifier for the agent `CfgAgentLogin.loginCode`. This value may not be universally unique. Only use this for backwards compatibility.
- User Name default. `CfgPerson.userName`. Use this option for all new installations.
- Employee ID `CfgPerson.employeeID`. This value may not be universally unique. Only use this for backwards compatibility.