Fixed ticket #423: Client registration (pjsip_regc) doesn't obey explicit transport selection (thanks Hitesh)

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1593 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip/src/pjsip-ua/sip_reg.c b/pjsip/src/pjsip-ua/sip_reg.c
index fda28d7..e9f77ac 100644
--- a/pjsip/src/pjsip-ua/sip_reg.c
+++ b/pjsip/src/pjsip-ua/sip_reg.c
@@ -835,6 +835,9 @@
 	       pjsip_msg_find_hdr(tdata->msg, PJSIP_H_CSEQ, NULL);
     cseq_hdr->cseq = cseq;
 
+    /* Bind to transport selector */
+    pjsip_tx_data_set_transport(tdata, &regc->tp_sel);
+
     /* Increment pending transaction first, since transaction callback
      * may be called even before send_request() returns!
      */