Use TTI to:

• Merge an X-ported extension to a valid port. To merge an X-ported extension to a valid port, enter the system-wide TTI security code, and then the extension from a telephone that is connected to the valid port.

• Separate an extension from the port to which the extension is assigned. To separate the extension from the port, enter the required numbers. When you enter the required numbers, the extension is administered as an X port.

When TTI is enabled for voice, all voice ports, except Basic Rate Interface (BRI) ports, become TTI ports, or ports from which a TTI merge sequence can occur.

You usually use TTI to move telephones. However, you can also use TTI to connect and move attendants and data modules.