Index: channels/chan_sip.c
diff -Nau channels/chan_sip.c.orig channels/chan_sip.c
--- channels/chan_sip.c.orig	2009-04-24 00:48:57.000000000 +0200
+++ channels/chan_sip.c	2009-04-24 00:49:21.000000000 +0200
@@ -18771,6 +18771,7 @@
 \todo	Fix this function so that we wait for reply to the REFER and
 	react to errors, denials or other issues the other end might have.
  */
+/* MSvB: Paramater dest may be SIPS encoded, having '@@' before host */
 static int sip_sipredirect(struct sip_pvt *p, const char *dest)
 {
 	char *cdest;
@@ -18780,7 +18781,7 @@
 	cdest = ast_strdupa(dest);
 	
 	extension = strsep(&cdest, "@");
-	host = strsep(&cdest, ":");
+	host = strsep(&cdest, ":");		/* MSvB: Could begin with '@' if SIPS */
 	port = strsep(&cdest, ":");
 	if (ast_strlen_zero(extension)) {
 		ast_log(LOG_ERROR, "Missing mandatory argument: extension\n");
@@ -18813,7 +18814,13 @@
 		}
 	}
 
-	ast_string_field_build(p, our_contact, "Transfer <sip:%s@%s%s%s>", extension, host, port ? ":" : "", port ? port : "");
+	if (host && *host == '@') {
+		ast_log(LOG_DEBUG, "Decoding TLS incapable Asterisk SIP URI to a standard SIPS URI before redirecting via 302 Moved Temporarily\n");
+		ast_string_field_build(p, our_contact, "Transfer <sips:%s@%s%s%s>", extension, host + 1, port ? ":" : "", port ? port : "");
+    }
+	else
+		ast_string_field_build(p, our_contact, "Transfer <sip:%s@%s%s%s>", extension, host, port ? ":" : "", port ? port : "");
+
 	transmit_response_reliable(p, "302 Moved Temporarily", &p->initreq);
 
 	sip_scheddestroy(p, SIP_TRANS_TIMEOUT);	/* Make sure we stop send this reply. */