Aastra Telecom IP Phone - Manual (Page 129)

Model 57i IP Phone User Guide 121
Receiving Calls
Sending an Incoming Call to Voicemail
You can send an incoming call directly to voicemail without answering the call. To
do this, press without picking up the handset. If you're already on the phone
your incoming call should go directly to voicemail. Your phone screen displays a
voicemail icon (
) along with the number of waiting messages, if you have
unheard messages (example: x4).