Can the PAX A920 use a mobile data connection instead of Wi-Fi?
Yes, the PAX A920 wallee is optionally available with a SIM card for mobile data connectivity. If you have chosen this option, the SIM card comes pre-installed and is ready for use immediately when you switch on the device. This mobile data connection can be used as an alternative to Wi-Fi for account activation and payment processing. (Page 3)
From the official Wallee PAX A920 Mobile Payment Terminal manual, page 3
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