Important: Enter phone numbers exactly as when dialling, for example, always enter external numbers with a leading exchange line access number. In the factory settings, the PBX's exchange line access number is "0", but it can be changed in some PBXs (refer to the Advanced Information for the PBX).
Note: Tap on
to display the external contact list and select an external account (exchange line). Tap on
to display the internal contact list. Only internal numbers can be dialled.