--- channels/chan_sip.orig	2014-08-08 17:18:17.000000000 +0000
+++ channels/chan_sip.c	2014-12-10 23:38:38.000000000 +0000
@@ -3810,7 +3810,7 @@
 	ast_ouraddrfor(them, us);
 	ast_sockaddr_copy(&theirs, them);
 
-	if (ast_sockaddr_is_ipv6(&theirs)) {
+	if (ast_sockaddr_is_ipv6(&theirs) && !ast_sockaddr_is_ipv4_mapped(&theirs)) {
 		if (localaddr && !ast_sockaddr_isnull(&externaddr) && !ast_sockaddr_is_any(&bindaddr)) {
 			ast_log(LOG_WARNING, "Address remapping activated in sip.conf "
 				"but we're using IPv6, which doesn't need it. Please "
@@ -3826,7 +3826,7 @@
 	    (!sip_cfg.matchexternaddrlocally || !ast_apply_ha(localaddr, us)) ) {
 		/* if we used externhost, see if it is time to refresh the info */
 		if (externexpire && time(NULL) >= externexpire) {
-			if (ast_sockaddr_resolve_first(&externaddr, externhost, 0)) {
+			if (ast_sockaddr_resolve_first_af(&externaddr, externhost, 0, AF_INET)) {
 				ast_log(LOG_NOTICE, "Warning: Re-lookup of '%s' failed!\n", externhost);
 			}
 			externexpire = time(NULL) + externrefresh;