content_type = get_header(req, "Content-Type");
        /* if the body contains only SDP, this is easy */
        if (!strcasecmp(content_type, "application/sdp")) {
                req->sdp_start = 0;
                req->sdp_end = req->lines;
                return req->lines ? 1 : 0;
        }
//begin of added code
        /* specific patch fo MS Office Mediation Server 2007, which send us
          content_type=application/sdp; charset=utf-8
        */
        if (!strcasecmp(content_type, "application/sdp; charset=utf-8")) {
                ast_log(LOG_WARNING, "Found SIP Header with charset=utf-8  %s\n", content_type);
                req->sdp_start = 0;
                req->sdp_end = req->lines;
                return req->lines ? 1 : 0;
        }
//end of added code
        /* if it's not multipart/mixed, there cannot be an SDP */
        if (strncasecmp(content_type, "multipart/mixed", 15))
                return 0;