Mid-call features allow you to hold, transfer, and conference calls by using DTMF digit codes entered on the phone. In this recipe, we will show how to customize those codes and briefly explain how to use them.
If we are not going to use the predefined codes, it is helpful to have these documented and provided as part of end user training material.
To customize the DTMF mid-call feature codes, perform the following:
First navigate to the service parameters page (System | Service Parameters).
Select the appropriate server from the Server drop-down.
Select the Cisco CallManager as the Service.
Scroll down near the bottom to the section titled Clusterwide Parameters (System – Mobility).
Change the Enterprise Feature Access Codes as desired:
Click on Save.