Index: chan_sip.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_sip.c,v
retrieving revision 1.422
diff -u -r1.422 chan_sip.c
--- chan_sip.c	22 Jun 2004 18:49:00 -0000	1.422
+++ chan_sip.c	25 Jun 2004 12:42:15 -0000
@@ -4446,6 +4446,28 @@
 	return 0;
 }
 
+/*--- _percent_escape: Escape %XX codes in headers */
+char *_percent_escape(char *s) {
+    char c, *aptr, *sptr;
+    int val;
+    char *answer = malloc(strlen(s)+1); // answer is always shorter
+    aptr = answer;
+    sptr = s;
+    while ((c = *sptr++) != '\0') {
+	if (c == '%') {
+	    sscanf(sptr, "%02X", &val);
+	    *aptr++ = (char) val;
+	    sptr += 2;
+	}
+	else
+	    *aptr++ = c;
+    }
+    *aptr = '\0';
+    strcpy(s, answer);
+    free(answer);
+    return s;
+}
+
 /*--- get_destination: Find out who the call is for --*/
 static int get_destination(struct sip_pvt *p, struct sip_request *oreq)
 {
@@ -4493,6 +4515,7 @@
 		} else
 			strncpy(p->fromdomain, fr, sizeof(p->fromdomain) - 1);
 	}
+	c = _percent_escape(c);
 	if (sip_debug_test_pvt(p))
 		ast_verbose("Looking for %s in %s\n", c, p->context);
 	if (ast_exists_extension(NULL, p->context, c, 1, fr) ||