Clarify documentation for "progressinband" - imported from 1.2

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@13246 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index d49edf2..767dedf 100644 (file)
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -89,6 +89,7 @@ srvlookup=yes                 ; Enable DNS SRV lookups on outbound calls
 ;progressinband=never          ; If we should generate in-band ringing always
                                ; use 'never' to never use in-band signalling, even in cases
                                ; where some buggy devices might not render it
+                               ; Valid values: yes, no, never Default: never
 ;useragent=Asterisk PBX                ; Allows you to change the user agent string
 ;promiscredir = no             ; If yes, allows 302 or REDIR to non-local SIP address
                                ; Note that promiscredir when redirects are made to the