?????????? wrote: > hi: > > I want to send an bmp IM Message. > But when i use the pjsua_im_send() send a rtf format bmp string, > the fail return. > What can i do? You have full control over both the Content-Type and the content of the IM, so I'm not sure what you're asking here. But IMO, sending BMP, especially large one, with SIP is not a good idea. Better just send the URL of the image, or use MSRP (but for the later, someone has to write code to support it first ;-) ). -benny