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Only check if we need to do a SIGMA based tone generation if we have a card. (issue #10179 reported by mikowhy)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@74515 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2007-07-11 14:09:13 +00:00
parent 4ab675ca50
commit 058a40ff02
1 changed files with 1 additions and 1 deletions
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2
channels/chan_phone.c
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@@ -1044,7 +1044,7 @@ static void *do_monitor(void *data)
ast_mutex_unlock(&iflock);
/* Wait indefinitely for something to happen */
if (dotone && i->mode != MODE_SIGMA) {
if (dotone && i && i->mode != MODE_SIGMA) {
/* If we're ready to recycle the time, set it to 30 ms */
tonepos += 240;
if (tonepos >= sizeof(DialTone))