every time, I deloy the funciton pjsua_set_snd_dev, it always fails. the error message is : invalid channel number. So I can not select sound device, only use -1 . who can solve this problem ? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080412/0374f54b/attachment.html