Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c (revision 38166)
+++ channels/chan_sip.c (working copy)
@@ -4380,6 +4380,9 @@
        const char *content_type;
        const char *search;
        char *boundary;
+
+       char *boundary2;
+       char *search2;
        unsigned int x;

        content_type = get_header(req, "Content-Type");
@@ -4406,14 +4409,21 @@

        /* make a duplicate of the string, with two extra characters
           at the beginning */
-       boundary = ast_strdupa(search - 2);
+       boundary2 = ast_strdupa(search - 2);
+       if ((search2 = strcasestr(boundary2, "\""))) {
+               boundary = ast_strdupa(search -1);
+       }
+       else {
+               strcpy(boundary2,boundary);
+       }
+
        boundary[0] = boundary[1] = '-';

        /* search for the boundary marker, but stop when there are not enough
           lines left for it, the Content-Type header and at least one line of
           body */
        for (x = 0; x < (req->lines - 2); x++) {
-               if (!strncasecmp(req->line[x], boundary, strlen(boundary)) &&
+               if (!strncasecmp(req->line[x], boundary, strlen(boundary) -1) &&
                    !strcasecmp(req->line[x + 1], "Content-Type: application/sdp")) {
                        req->sdp_start = x + 2;
                        /* search for the end of the body part */