Freetdm: Added check for channel_on_routing called more than once on incoming calls

diff --git a/libs/freetdm/src/ftdm_io.c b/libs/freetdm/src/ftdm_io.c
index fb153c80623ebb018fe09c7fb315918395f6f849..f97029b8dc5f392a46326d711934cee4aeb1b201 100644 (file)
--- a/libs/freetdm/src/ftdm_io.c
+++ b/libs/freetdm/src/ftdm_io.c
@@ -2281,7 +2281,8 @@ FT_DECLARE(ftdm_status_t) _ftdm_channel_call_indicate(const char *file, const ch
                status = ftdm_channel_set_state(file, func, line, ftdmchan, FTDM_CHANNEL_STATE_BUSY, 1);
                break;
        case FTDM_CHANNEL_INDICATE_PROCEED:
-               if (!ftdm_test_flag(ftdmchan->span, FTDM_SPAN_USE_PROCEED_STATE)) {
+               if (!ftdm_test_flag(ftdmchan->span, FTDM_SPAN_USE_PROCEED_STATE) ||
+                       ftdmchan->state == FTDM_CHANNEL_STATE_PROCEED) {
                        ftdm_ack_indication(ftdmchan, indication, status);
                        goto done;
                }