This enumeration specifies the data encoding that is primarily used for outgoing text message types in SmsSendMessage calls. Refer to GSM specification 03.40 "Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS)" for details.
Chooses the data encoding that fully represents all of the characters in the least amount of space.
Use the default GSM 7-bit encoding specified in GSM specification 03.38 "Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information." Characters that cannot be represented by this encoding will not be transmitted correctly.
Use the Unicode UCS2 encoding.
This character encoding should be supported for CDMA2000 Short Message Service (SMS) . If the Unicode and GSM characters are not supported by the network, the characters will be remapped to ASCII if feasible to maintain compatibility.
Because the 7-bit ASCII character set is not a superset of the 7-bit GSM encoding, you will not be able to remap some characters. In those cases, insert filler characters. For example, if the application inserts the non-7-bit ASCII character (∆) or (ǜ), that character will be replaced by ASCII character 21 (§).