Ensure that only one end of a T.38 session initiates teardown at completion.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@230343 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/apps/app_fax.c b/apps/app_fax.c
index a1448cf1e46d33f22aa256812f1e8919d1e5dbe5..6a33fe7a3040087a0f9b460822bbf7360487a2d9 100644 (file)
--- a/apps/app_fax.c
+++ b/apps/app_fax.c
@@ -706,7 +706,11 @@ static int transmit_t38(fax_session *s)
        t38_terminal_release(&t38);
 
 disable_t38:
-       if (ast_channel_get_t38_state(s->chan) == T38_STATE_NEGOTIATED) {
+       /* if we are not the caller, it's our job to shut down the T.38
+        * session when the FAX transmisson is complete.
+        */
+       if ((s->caller_mode == FALSE) &&
+           (ast_channel_get_t38_state(s->chan) == T38_STATE_NEGOTIATED)) {
                if (ast_indicate_data(s->chan, AST_CONTROL_T38_PARAMETERS, &t38_parameters, sizeof(t38_parameters)) == 0) {
                        /* wait up to five seconds for negotiation to complete */
                        unsigned int timeout = 5000;