Yes, you can.

Please note the followings:

・This service is not included in our original plans.
・The monthly charge is 330JPY / month tax included.
・The default language for voice recognition is Japanese. If you wish to change it to English you must change the setting by yourself. For further instructions, please send a request to our customer support.
- To listen to the voicemail, you will be charged 22 JPY / 30 seconds tax included.

If you wish to add the voice mail function, please request the service here.