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E_MBN_SMS_UNKNOWN_SMSC_ADDRESS
E_MBN_SMS_UNKNOWN_SMSC_ADDRESS is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the SMS operation uses an unknown or incomplete short-message service centre address.
What to check for E_MBN_SMS_UNKNOWN_SMSC_ADDRESS
- Check carrier provisioning and the SMSC value exposed by the SIM or modem.
- Do not hard-code a service-centre address unless the carrier explicitly requires and supplies it.
- Refresh the device profile after a SIM or carrier change before retrying SMS delivery.
Microsoft: IMbnSmsEvents::OnSmsSendComplete
Diagnostic discriminator: Inspect the SMS service-center address resolved or supplied for the send operation. This status means the SMSC address is unknown, not that the message encoding or language is unsupported.
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