The first available appearance button is automatically selected for the call.

If you started dialing without lifting the handset, the call uses either the phone's speaker or headset depending on the phone's default handsfree audio setting. To switch to the handset, just lift the handset.

If you started dialing by lifting the handset, you will hear dial tone. If you have do not disturb or forward all calls enabled, the continuous dial tone is replaced with broken or interrupted dial tone (dial tone with pauses) as a reminder that your phone is set to not receive calls.

If the number you dial matches a user or group on the telephone system, the directory name is shown and the call starts altering them. Otherwise, as soon as there are enough digits, the phone is connected to an external telephone line.

If the call is to an internal user, and they do not answer, you can set a callback by pressing CallBack and then ending the call by pressing Drop. When a callback is set, the next time that user uses their phone or when they end their current call, the system will call you and when you answer, automatically make another call to the user.