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-rw-r--r--configs/chan_dahdi.conf.sample27
1 files changed, 26 insertions, 1 deletions
diff --git a/configs/chan_dahdi.conf.sample b/configs/chan_dahdi.conf.sample
index 1f103686e..17587068a 100644
--- a/configs/chan_dahdi.conf.sample
+++ b/configs/chan_dahdi.conf.sample
@@ -205,7 +205,32 @@
; yes or both: both directions
;
;overlapdial=yes
-;
+
+; Send/receive ISDN display IE options. The display options are a comma separated
+; list of the following options:
+;
+; block: Do not pass display text data.
+; Q.SIG: Default for send/receive.
+; ETSI CPE: Default for send.
+; name_initial: Use display text in SETUP/CONNECT messages as the party name.
+; Default for all other modes.
+; name_update: Use display text in other messages (NOTIFY/FACILITY) for COLP name
+; update.
+; name: Combined name_initial and name_update options.
+; text: Pass any unused display text data as an arbitrary display message
+; during a call. Sent text goes out in an INFORMATION message.
+;
+; * Default is an empty string for legacy behavior.
+; * The name options are not recommended for Q.SIG since Q.SIG already
+; supports names.
+; * The send block is the only recommended setting for CPE mode since Q.931 uses
+; the display IE only in the network to user direction.
+;
+; display_send and display_receive cannot be changed on reload.
+;
+;display_send=
+;display_receive=
+
; Allow inband audio (progress) when a call is DISCONNECTed by the far end of a PRI
;
;inbanddisconnect=yes