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E_MBN_SMS_FORMAT_NOT_SUPPORTED
E_MBN_SMS_FORMAT_NOT_SUPPORTED is a Windows Mobile Broadband (MBN) HRESULT. It indicates that the modem does not support the SMS message format requested by the operation.
What to check for E_MBN_SMS_FORMAT_NOT_SUPPORTED
- Query device SMS capabilities before selecting a message format or storage representation.
- Check whether the feature relies on a format that is unsupported by the current modem or carrier service.
- Use a supported format intentionally rather than converting payloads without preserving required message semantics.
Diagnostic discriminator: Compare the requested SMS message format with the formats advertised by the modem. This status is format capability, distinct from unsupported language or character encoding.
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