Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 434725)
+++ channels/chan_sip.c	(working copy)
@@ -10621,6 +10621,10 @@
 			if ((t38action == SDP_T38_ACCEPT) &&
 			    (p->t38.state == T38_LOCAL_REINVITE)) {
 				change_t38_state(p, T38_ENABLED);
+                        } else if ((t38action == SDP_T38_INITIATE) &&
+                                   p->owner && p->lastinvite && p->t38.state == T38_ENABLED) {
+                                // already in T38 so just  send a new re-invite
+                                transmit_response_with_t38_sdp(p, "200 OK", &p->initreq, XMIT_CRITICAL);
 			} else if ((t38action == SDP_T38_INITIATE) &&
 				   p->owner && p->lastinvite) {
 				change_t38_state(p, T38_PEER_REINVITE); /* T38 Offered in re-invite from remote party */