Mitel 6863i Release Notes page 40

Mitel 6800 Series SIP Phones 4.2.0 SP1 Release Notes
The diacritics and secondary characters available for the Russian keyboard include:
PRESS AND HOLD
е
?
$
(
)
`
-
36
Russian Keyboard - Upper Case
Russian Keyboard - Numeric
AVAILABLE DIACRITICS/SECONDARY CHARACTERS
ё
¿
€
{
}
~
_
£
[
]
<
>