add sofia-sip 1.12.4 (plus some patches through 12/21/2006) to in tree libs

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3774 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/sofia-sip/libsofia-sip-ua/ipt/ipt.docs

@@ -0,0 +1,23 @@
+/* -*- c -*- */
+
+/**@MODULEPAGE "ipt" - Utility Module
+ * 
+ * @section ipt_meta Module Meta Information
+ *
+ * Utility library for IP Telephony applications.
+ *
+ * @CONTACT Pekka Pessi <Pekka.Pessi@nokia.com>
+ *
+ * @STATUS @SofiaSIP Core library
+ *
+ * @LICENSE LGPL
+ *
+ * @section ipt_overview Overview
+ *
+ * This module contain some routines useful for IPT applications, like 
+ * - base64.h BASE64 encoding/decoding, 
+ * - token64.h encoding/decoding binary as SIP/HTTP token, 
+ * - utf8.h UTF8 encoding/decoding, 
+ * - sha1.h SHA1 hash routines, and
+ * - rc4.h arcfour random number generator.
+ */