Twilio Narrowband SIM cards require the APN to be set to iot.nb. The use of another APN will prevent your SIM from connecting to the Narrowband data network.
What APN does Twilio Narrowband use?
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Twilio Narrowband SIM cards require the APN to be set to iot.nb. The use of another APN will prevent your SIM from connecting to the Narrowband data network.