How do I set up extension mapping?

Reroute an extension or a range of extensions to another extension.

Before you begin: You must have admin or super admin permissions.
About this task: Extension mapping is primarily used to transition a third party phone system to GoToConnect or to integrate your remote workers with a traditional phone system. Use extension mapping to allow a caller to dial 0 to reach an operator (i.e., an extension of your choice).
  1. Log in at
  2. Click System Settings in the left sidebar.
  3. From Extension Mapping, click Add Extension Mapping.
  4. Enter the Pattern (extension or range of extensions) that you want forwarded to a new extension. Only unassigned extensions will follow these mapping rules. Use X for extension ranges:
    • 1XXX for extensions 1000-1999.
    • 12XX for extensions 1200-1299.
    • 123X for extensions 1230-1239.
  5. Select the destination Extension for the rerouted extension(s).
  6. Click Admin Portal Checkmark Icon.