What is the maximum number of characters in an USSD message?

Question

I\'ve understood that an USSD message consists of 160 bytes. For 7 bit data coding schemes, the maximum number of characters is 160*8/7 which gives 182 characters. It\'s unc

Answer 1

The maximum size of a USSD message is 160 bytes. For GSM 7 Bit messages you are correct in saying the limit is 182 characters. UC2 encoding per definition is fixed 2 bytes per character so you will have a maximum of 80 characters.