TheSMSmessage,asspecifiedbytheEtsiorganization(documentsGSM03.40andGSM03.38),canbeupto160characterslong,whereeachcharacteris7bitsaccordingtothe7-bitdefaultalphabet.Eight-bitmessages(max140characters)areusuallynotviewablebythephonesastextmessages;insteadtheyareusedfordataine.g.