Hi, RFC2833 digits are not sent when received SDP contains TELEPHONE-EVENT in uppercase instead of lowercase. Problem was found on release 1.8.5, but inspection of similar code in the trunk shows the problem is still present in stream.c function get_audio_codec_info_param Fix both incoming and outgoing payload type for telephone-events : replace: pj_strcmp(&r.enc_name, &ID_TELEPHONE_EVENT) by: pj_stricmp(&r.enc_name, &ID_TELEPHONE_EVENT) Regards, Arie -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120309/665f5787/attachment.html>