diff --git a/main/channel.c b/main/channel.c index a83c3c94dc3a9e03eef5bf84989813f77bc6b26d..f94afd9cd128d204413d77f8386d2f0962cfa694 100644 --- a/main/channel.c +++ b/main/channel.c @@ -1696,15 +1696,31 @@ int __ast_answer(struct ast_channel *chan, unsigned int delay) switch (chan->_state) { case AST_STATE_RINGING: case AST_STATE_RING: - if (chan->tech->answer) - res = chan->tech->answer(chan); - ast_setstate(chan, AST_STATE_UP); - ast_cdr_answer(chan->cdr); - ast_channel_unlock(chan); - if (delay) + if (delay) { + int needanswer = (chan->tech->answer != NULL); + + ast_setstate(chan, AST_STATE_UP); + ast_cdr_answer(chan->cdr); + ast_channel_unlock(chan); ast_safe_sleep(chan, delay); + /* don't tell the channel it has been answered until *after* the delay, + so that the media path will be in place and usable when it wants to + send media + */ + if (needanswer) { + ast_channel_lock(chan); + res = chan->tech->answer(chan); + ast_channel_unlock(chan); + } + } else { + if (chan->tech->answer) { + res = chan->tech->answer(chan); + } + ast_setstate(chan, AST_STATE_UP); + ast_cdr_answer(chan->cdr); + ast_channel_unlock(chan); + } return res; - break; case AST_STATE_UP: ast_cdr_answer(chan->cdr); break;