Hi and welcome to JustAnswer,
Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back with the complete model number of the phone system / answering machine. Additionally, who is your phone service provider please?
Appreciate the addition al information.
Have you tried dialing your own phone number (using the Panasonic KX-TG9541) and listen/follow any voice instructions?