SMDI documentation fix (issue #7732 reported by mnicholson)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@39776 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/doc/smdi.txt b/doc/smdi.txt
index d89c4f35c7b158acc480f91898fbc3ddb2bacefd..a4aa6bbd644865ed2ce097e946e2fcfad438bf10 100644 (file)
--- a/doc/smdi.txt
+++ b/doc/smdi.txt
@@ -4,7 +4,8 @@ Asterisk SMDI (Simple Message Desk Interface) integration
 SMDI integration is configured in smdi.conf, zaptel.conf, and voicemail.conf.
 Various characteristics of the SMDI interfaces to be used (serial ports) are
 defined in smdi.conf.  SMDI integration for callerid and MWI are defined in
-zaptel.conf and voicemail.conf respectively.
+zaptel.conf and voicemail.conf respectively. SMDI only works with Zaptel
+interfaces configured for FXS signalling.
 
 When SMDI is enabled and a call comes into Asterisk, the forwarding station
 number is used as the destination for the call and any callerid information