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-rw-r--r--configs/chan_dahdi.conf.sample11
1 files changed, 11 insertions, 0 deletions
diff --git a/configs/chan_dahdi.conf.sample b/configs/chan_dahdi.conf.sample
index 10c55ca75..d83bba8d9 100644
--- a/configs/chan_dahdi.conf.sample
+++ b/configs/chan_dahdi.conf.sample
@@ -551,6 +551,17 @@ usecallerid=yes
; marking the line as once again available for use with outgoing calls.
;waitfordialtone=yes
;
+; For analog lines, enables Asterisk to use dialtone detection per channel
+; if an incoming call was hung up before it was answered. If dialtone is
+; detected, the call is hung up.
+; no: Disabled. (Default)
+; yes: Look for dialtone for 10000 ms after answer.
+; <number>: Look for dialtone for the specified number of ms after answer.
+; always: Look for dialtone for the entire call. Dialtone may return
+; if the far end hangs up first.
+;
+;dialtone_detect=no
+;
; The following option enables receiving MWI on FXO lines. The default
; value is no.
; The mwimonitor can take the following values