Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 281981)
+++ channels/chan_sip.c	(working copy)
@@ -23775,6 +23775,7 @@
 	peer->timer_t1 = global_t1;
 	peer->timer_b = global_timer_b;
 	clear_peer_mailboxes(peer);
+	peer->transports = SIP_TRANSPORT_UDP;
 }
 
 /*! \brief Create temporary peer (used in autocreatepeer mode) */