> For the complete documentation index, see [llms.txt](https://smsc.revicom.ltd/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://smsc.revicom.ltd/how-to-work-with-smsc/encoding-setting.md).

# Encoding setting

Messages sent via the service SMSC may consist of Latin and Cyrillic letters, as well as include special characters (Russian and Latin letters with diacritical marks, letters of the Greek and other alphabets, specific punctuation marks, as well as non-printing characters). When sending messages, it is recommended to use the settings tabled below.

| **Text** | **Data coding** | **Encoding**          | **Message length** |
| -------- | --------------- | --------------------- | ------------------ |
| Cyrillic | 0x08            | UTF-16ВE (big endian) | 70 characters      |
| Latin    | 0x00            | ASCII-8               | 160 characters     |

:warning:**IMPORTANT**

Be careful about using the following characters in SMS:

£,¥,è,é,ù,ì,ò,Ç,Ø,ø,Å,å,Δ,Φ,Γ,Λ,Ω,Π,Ψ,Σ,Θ,Ξ,Æ,æ,ß,É,¤,¡,Ä,Ö,Ñ,Ü,§ ¿,ä,ö,ñ,ü,à,

NUL,SOH,STX,ETX,EOT,ENQ,ACK,BEL,BS,TAB,VT,SO,SI,DLE,DC1,DC2,DC3,DC4,

NAK,SYN,ETB,CAN,EM,SUB,FS,GS,RS,US,\`,DEL.

**Operators may not support these characters or convert messages to Unicode due to their platform or specification, thereby increasing the number of message parts charged.**