Index: channels/chan_iax2.c
===================================================================
--- channels/chan_iax2.c	(revision 387927)
+++ channels/chan_iax2.c	(working copy)
@@ -11509,64 +11509,83 @@
 				}
 				break;
 			case IAX_COMMAND_TXREJ:
-				iaxs[fr->callno]->transferring = 0;
+				iaxs[fr->callno]->transferring = TRANSFER_NONE;
 				ast_verb(3, "Channel '%s' unable to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
 				memset(&iaxs[fr->callno]->transfer, 0, sizeof(iaxs[fr->callno]->transfer));
 				if (iaxs[fr->callno]->bridgecallno) {
 					if (iaxs[iaxs[fr->callno]->bridgecallno]->transferring) {
-						iaxs[iaxs[fr->callno]->bridgecallno]->transferring = 0;
+						iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_NONE;
 						send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREJ, 0, NULL, 0, -1);
 					}
 				}
 				break;
 			case IAX_COMMAND_TXREADY:
-				if ((iaxs[fr->callno]->transferring == TRANSFER_BEGIN) ||
-				    (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN)) {
-					if (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN)
-						iaxs[fr->callno]->transferring = TRANSFER_MREADY;
-					else
-						iaxs[fr->callno]->transferring = TRANSFER_READY;
-					ast_verb(3, "Channel '%s' ready to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
+				if (iaxs[fr->callno]->bridgecallno) {
+					while (ast_mutex_trylock(&iaxsl[iaxs[fr->callno]->bridgecallno])) {
+						DEADLOCK_AVOIDANCE(&iaxsl[fr->callno]);
+					}
+					if (!iaxs[fr->callno]) {
+						break;
+					}
+				}
+
+				if (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN) {
+					iaxs[fr->callno]->transferring = TRANSFER_MREADY;
+				} else if (iaxs[fr->callno]->transferring == TRANSFER_BEGIN) {
+					iaxs[fr->callno]->transferring = TRANSFER_READY;
+				} else {
 					if (iaxs[fr->callno]->bridgecallno) {
-						if ((iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_READY) ||
-						    (iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_MREADY)) {
-							/* They're both ready, now release them. */
-							if (iaxs[fr->callno]->transferring == TRANSFER_MREADY) {
-								ast_verb(3, "Attempting media bridge of %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
-										iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+	      					ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
+					}
+					break;
+				}
 
-								iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_MEDIA;
-								iaxs[fr->callno]->transferring = TRANSFER_MEDIA;
+				ast_verb(3, "Channel '%s' ready to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
 
-								memset(&ied0, 0, sizeof(ied0));
-								memset(&ied1, 0, sizeof(ied1));
-								iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
-								iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
-								send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied0.buf, ied0.pos, -1);
-								send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied1.buf, ied1.pos, -1);
-							} else {
-								ast_verb(3, "Releasing %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
-										iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+				if (iaxs[fr->callno]->bridgecallno) {
+					if (iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_MREADY) {
+						/* They're both ready, now release them. */
+						ast_verb(3, "Attempting media bridge of %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
+							iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
 
-								iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_RELEASED;
-								iaxs[fr->callno]->transferring = TRANSFER_RELEASED;
-								ast_set_flag64(iaxs[iaxs[fr->callno]->bridgecallno], IAX_ALREADYGONE);
-								ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
+						iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_MEDIA;
+						iaxs[fr->callno]->transferring = TRANSFER_MEDIA;
 
-								/* Stop doing lag & ping requests */
-								stop_stuff(fr->callno);
-								stop_stuff(iaxs[fr->callno]->bridgecallno);
+						memset(&ied0, 0, sizeof(ied0));
+						memset(&ied1, 0, sizeof(ied1));
 
-								memset(&ied0, 0, sizeof(ied0));
-								memset(&ied1, 0, sizeof(ied1));
-								iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
-								iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
-								send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied0.buf, ied0.pos, -1);
-								send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied1.buf, ied1.pos, -1);
-							}
+						iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
+						iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
 
-						}
+						send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied0.buf, ied0.pos, -1);
+						send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied1.buf, ied1.pos, -1);
+
+					} else if (iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_READY) {
+						/* They're both ready, now release them. */
+						ast_verb(3, "Releasing %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
+							iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+
+						iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_RELEASED;
+						iaxs[fr->callno]->transferring = TRANSFER_RELEASED;
+
+						ast_set_flag64(iaxs[iaxs[fr->callno]->bridgecallno], IAX_ALREADYGONE);
+						ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
+
+						/* Stop doing lag & ping requests */
+						stop_stuff(fr->callno);
+						stop_stuff(iaxs[fr->callno]->bridgecallno);
+
+						memset(&ied0, 0, sizeof(ied0));
+						memset(&ied1, 0, sizeof(ied1));
+
+						iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
+						iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
+
+						send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied0.buf, ied0.pos, -1);
+						send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied1.buf, ied1.pos, -1);
+
 					}
+      					ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
 				}
 				break;
 			case IAX_COMMAND_TXREQ: