Chuckup We appreciate you taking the time to reach out to us. We want to clarify some details about exactly what you're looking for. Are you asking if you're able to use the jetpack for calls over wifi or 4g?
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We can use our SIP service over our own Internet/WIFi connection using a computer to receive the WiFi and “route” the connection to a SIP phone via the RJ-45 connector on the computer.
When we switch from our WiFi connection to the Verizon Jet pack WiFI service on the computer, SIP service no longer works. When we switch back to our own WIFi connection, SIP works again.