Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c (revision 44743)
+++ channels/chan_sip.c (working copy)
@@ -3474,6 +3474,10 @@
        /* make a duplicate of the string, with two extra characters
           at the beginning */
        boundary = ast_strdupa(search - 2);
+       if (strcasestr(boundary, "\"")) {
+               strncpy(boundary, boundary+1, strlen(boundary));
+               boundary[strlen(boundary)-1] = '\0';
+       }
        boundary[0] = boundary[1] = '-';

        /* search for the boundary marker, but stop when there are not enough
@@ -3483,6 +3487,7 @@
                if (!strncasecmp(req->line[x], boundary, strlen(boundary)) &&
                    !strcasecmp(req->line[x + 1], "Content-Type: application/sdp")) {
                        req->sdp_start = x + 2;
+                       x += 2;
                        /* search for the end of the body part */
                        for ( ; x < req->lines; x++) {
                                if (!strncasecmp(req->line[x], boundary, strlen(boundary)))