Hello!
I need to create application that send tiff-file (fax) from one computer and receive it in another using T.38 protocol (just from client to server without Asterisk). I use spandsp library - spandsp-0.0.3pre6.tgz (www.soft-switch.org). But, unfortunately, it have not documention for T.38 functions. I understood sense of some functions and structures from test examples. But I could not found where it is need to set IP-address of destination host, exactly commands sequence, for example, and some other. Hint anybody can I find anywhere documention on spandsp T.38 functions, or prompt me how to do it 
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Thanx.