don't timeout dialtone for mid-call dialtone to support hold better

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@363 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/openzap/src/zap_analog.c

@@ -260,7 +260,7 @@ static void *zap_analog_channel_run(zap_thread_t *me, void *obj)
 				break;
 			case ZAP_CHANNEL_STATE_DIALTONE:
 				{
-					if (state_counter > 10000) {
+					if (!zap_test_flag(zchan, ZAP_CHANNEL_HOLD) && state_counter > 10000) {
 						zap_set_state_locked(zchan, ZAP_CHANNEL_STATE_BUSY);
 					}
 				}