diff --git a/man/sxmsg_rreply.3SNTL b/man/sxmsg_rreply.3SNTL
index ad32902..aebbc4f 100644
--- a/man/sxmsg_rreply.3SNTL
+++ b/man/sxmsg_rreply.3SNTL
@@ -4,16 +4,28 @@ sxmsg_rreply \- Function used to send a rapid reply without confirmation
 .SH SYNOPSIS
 .B #include <sntl/sntllv2.h>
 .sp
-.BI int sxmsg_rreply(sxmsg_t *msg, size_t datalen);
+int sxmsg_rreply(sxmsg_t 
+.BI *msg
+, size_t 
+.BI datalen
+);
 .br
 .sp
 .SH DESCRIPTION
 .B sxmsg_rreply
-Will reply rapidly to the message using already allocated buffer, which might be
-retrieved via sxmsg_rapidbuf(). This function will write desired message as soon
-as possible. It will not wait any write or delivery confirmation.
+Will reply rapidly to the message using already allocated buffer, which must be
+retrieved via 
+.B sxmsg_rapidbuf(). 
+This function will write desired message as soon
+as possible. It will not wait any write or delivery confirmation. It will close 
+message dialog if message is valid.
 .br
 .SH RETURN VALUE
+Upon successful completion, the function shall rapidly send a message reply and close 
+the message dialog returning 
+.B SNE_SUCCESS
+Othrewise other error code will be returned.
+.SH ERRORS
 .B SNE_FAILED
 returns if message has invalid index, channel or message pointer is NULL.
 .br
@@ -33,3 +45,13 @@ Not known yet.
 char *buf = sxmsg_rapidbuf(msg);
 int ln = snprintf(buf, MAX_BBUFLEN, "(is-done)");
 return sxmsg_rreply(msg, str, ln);
+.SH APPLICATION USAGE
+This function will be useful in RPC functions required to reply ASAP i.e. for getting some data. It RPC function takes a lot of time it's better to use other functions and postponed message processing.
+.SH RATIONALE
+Use for lightweight RPC functions, this method may be used only in RPC call i.e. within SNTL thread context.
+.SH COPYRIGHT
+This is a proprietary software. See COPYING for further details.
+.br
+(c) Askele Group 2013-2015 <http://askele.com>
+.SH AUTHOR
+Alexander Vdolainen (vdo@askele.com)