There are several text based and binary message types in the SMS
technology. The most common message type is a standard text
message, that is less then 160 characters and that uses the 7
bit GSM alphabet. If you want to send a message longer then 160
characters, you will send a multipart SMS. A message containing
international characters, is called a unicode SMS. A unicode SMS
message can contain 70 characters. If you want to send a unicode
message longer then 70 characters, you will send a multipart
unicode SMS message. Text messages can also have attributes.
These attributes can make the message display immediately when
it arrives (FLASH sms), or they can turn on small icons on the
cellphone (e.g.: voice mail indication). Binary messages can
carry mobile phone configuration information and mobile content.
For example a ringtone, a wallpaper or WAP browser settings can
be sent as SMS. For a complete list of SMS message types, please
visit the SMS Message Type page. Multipart messages are used if
long text is