Find "Contacts"
Press the menu icon.

Press Contacts.

Press the Contacts tab.

Assign contact to speed dialling key
Press the settings icon.
Speed dialling key 1 is for voicemail.

Press Speed dial setting.
Speed dialling key 1 is for voicemail.

Press the required speed dialling key.
Speed dialling key 1 is for voicemail.

Press the required contact.
Speed dialling key 1 is for voicemail.

Exit
Press the home icon to return to standby mode.
