Merge "bridge_basic: don't play an attended transfer fail sound after target hangs up"

diff --cc main/bridge_basic.c
index 5d8ee49d06ca5fdd6a9e1b50a841b9c5ddf89951,47d838fcae5a2bd699dd95c72b4f110e7b86ae3a..8d7fbae7094df38288959afd0a563cbbd298d40e
--- 1/main/bridge_basic.c
--- 2/main/bridge_basic.c
+++ b/main/bridge_basic.c
@@@ -2222,8 -2178,9 +2222,9 @@@ static enum attended_transfer_state con
                bridge_unhold(props->transferee_bridge);
                return TRANSFER_COMPLETE;
        case STIMULUS_TRANSFER_TARGET_HANGUP:
+               return TRANSFER_REBRIDGE;
        case STIMULUS_DTMF_ATXFER_ABORT:
 -              play_sound(props->transferer, props->failsound);
 +              play_failsound(props->transferer);
                return TRANSFER_REBRIDGE;
        case STIMULUS_DTMF_ATXFER_THREEWAY:
                bridge_unhold(props->transferee_bridge);