Index: chan_sip.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_sip.c,v
retrieving revision 1.620
diff -u -r1.620 chan_sip.c
--- chan_sip.c	9 Jan 2005 01:15:43 -0000	1.620
+++ chan_sip.c	9 Jan 2005 01:26:50 -0000
@@ -3853,7 +3853,7 @@
 #endif
 	if (distinctive_ring && !ast_strlen_zero(distinctive_ring))
 	{
-		add_header(&req, "Alert-info",distinctive_ring);
+		add_header(&req, "Alert-Info",distinctive_ring);
 	}
 	add_header(&req, "Allow", ALLOWED_METHODS);
 	if (addsipheaders && init) {