[Linphone-developers] User Input Capabilities

[Raust Tamatea]

Hello,
I'm working on an application using mediastreamer2 / ortp / osip.

My problem is about working with DTMF. My application can send / receive 
DTMF with a phone and each tones are detected correctly.
Now I need to implement user input string from H245 like :
    - nonStandard,
    - basicString    [0-9, *, #],
    - iA5String,
    - generalString,
    - dtmf    [0-9, A-D, *, #],
    - hookflash,
    - extendedAlphanumeric

I can't find any relevant information on the internet about this type of 
input string (except for dtmf and basicString), for example wich 
characters are autorized for each type.
Do you have any informations about this input types and if I can 
implement them in my application with mediastreamer and the dtmfgen 
filter ? Perhaps it's only possible to use dtmf and basicString ?

Thanks for your help.

Regards.