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Sending Unicode SMS messages is not supported in Symbian Web Runtime (Known Issue)
Unicode characters are not supported in messages that are sent from the WRT widget.
When a message with Unicode characters is sent with the Messaging Service API, the receiver will see a series of question marks instead of actual characters. The Messaging Service API can only handle default SMS alphabets (ETSI GSM 03.38).
In the case of the SMS scheme handler, the native message editor is populated with incorrect characters. The SMS scheme handler can only handle the basic ASCII character set.
No solution available.