The CTI Server guide is pretty clear that only ASCII strings can be used in the 10 – 40 byte peripheral variables and the ECC Variables. However, I’m not sure if that includes the extended ASCII character set (i.e. 128-255) or not. They are stored and passed internally in the CTI Server/PG as Char[] (i.e. Character Array), and since the Char data type in C++ can hold any integer value from 0-255, I would think that the Extended Set should work.

UTF-8 is different that ASCII since it is expandable to contain every Unicode character. However, the first 128 characters are downwardly compatible with ASCII. After that they are quite different.

So the bottom line is you can definitely use ASCII (i.e. 0-127) and the first 128 characters of UTF-8.

Thanks very much David.