No, you cannot make direct phone calls or send SMS text messages with the Travel SIM/eSIM. Our travel SIM/eSIM plans provide data only and do not feature a phone number.  

Telephone services such as Texts (SMS) and calls are not possible using a data-only plan.

However, you can use internet connection-based calls and messages (i.g. WhatsApp, Messenger, Instagram, LINE, etc.) 
Or, if you are using an iPhone, you should be able to use iMessage and Facetime. 
 
If you would like to have a Japanese phone number, you may consider our Voice+Data SIM/ eSIM, which will allow you to make/receive voice calls as well as SMS.

Please see here for more information: https://www.sakuramobile.jp/long-term/voice-data-sim/