The use of outcalling can be disabled system-wide. When done, access to the system and user outcalling settings is hidden and the system no longer uses any outcalling for calls.
Procedure
Use IP Office Manager to receive the configuration of the IP Office system.
Select System and then select the Voicemail tab.
The Outcalling Control option is used to configure whether outcalling is allowed and outcalling options are configurable.
Click OK.
Click the icon to save any changes back to the IP Office system.