--- original/res_pjsip_t38.c    2015-03-31 14:41:18.339215820 +0200
+++ modified/res_pjsip_t38.c    2015-03-31 14:41:27.596151276 +0200
@@ -259,6 +259,7 @@
        ast_channel_set_fd(session->channel, 5, ast_udptl_fd(session_media->udptl));
        ast_udptl_set_error_correction_scheme(session_media->udptl, session->endpoint->media.t38.error_correction);
        ast_udptl_setnat(session_media->udptl, session->endpoint->media.t38.nat);
+       ast_udptl_set_far_max_datagram(session_media->udptl, session->endpoint->media.t38.maxdatagram);

        return 0;
 }