Support setting and receiving Reverse Charging Indication over ISDN PRI.

This is a continuation of revision 885 to LibPRI (Capture and expose the Reverse
Charging Indication IE on ISDN PRI) which added the ability to get/set Reverse
Charging Indication in LibPRI.  This patch adds the ability to specify RCI on
the outbound leg of a PRI call from within Asterisk, by prefixing the dialed
number with a capital 'C' like:

...,Dial(DAHDI/g1/C4445556666)

And to read it off an inbound channel:

exten => s,1,Set(RCI=${CHANNEL(reversecharge)})

Thanks again to rmudgett for the thorough review.

(closes issue #13760)
Reported by: mrgabu

Review: https://reviewboard.asterisk.org/r/303/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@204749 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 5 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index c0c1546f2..c74e39336 100644
--- a/CHANGES
+++ b/CHANGES
@@ -47,6 +47,11 @@ IAX2 Changes
  * Added rtsavesysname option into iax.conf to allow the systname to be saved
    on realtime updates.
 
+DAHDI Changes
+-------------
+ * Added Reverse Charging Indication receipt & transmission (requires latest
+   LibPRI).
+
 Applications
 ------------
  * Added progress option to the app_dial D() option.  When progress DTMF is