Hello, This is in response to an email by Hermann, I am not doing it as a reply as I get messages as a digest and lost the original message.
First thing to note is that speakup as far as I know has its own character table which it uses for pronouncing characters when saying individual characters (eg. spelling, cursoring over characters, etc). This table can be found in /sys/modules/speakup/parameters/characters and so can be edited there. Speakup by default lists characters up to value 255, although values beyond 127 depend on the encoding used (eg. latin1, utf-8, etc) for the actual definition. As far as I know espeakup doesn't modify this table, speechd-up can replace the tables or leave them alone (there is an option for speechd-up to specify this).
One way to fix this is to create a script to modify the table or copy a new table into /sys/modules/speakup/parameters/characters and to do this on start up.
Does this help?
Michael Whapples