Misc (re #1068): do not add To tag to the SIP response if the request already has one (thanks Rafael Maia for the suggestion)

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@3260 74dad513-b988-da41-8d7b-12977e46ad98

1 files changed, 1 insertions, 1 deletions

diff --git a/pjsip/src/pjsip/sip_util.c b/pjsip/src/pjsip/sip_util.c
index 3b1bc102..2b0933a3 100644
--- a/pjsip/src/pjsip/sip_util.c
+++ b/pjsip/src/pjsip/sip_util.c
@@ -574,7 +574,7 @@ PJ_DEF(pj_status_t) pjsip_endpt_create_response( pjsip_endpoint *endpt,
      * to do this is to derive the tag from Via branch parameter (or to
      * use it directly).
      */
-    if (st_code > 100 && top_via) {
+    if (to_hdr->tag.slen==0 && st_code > 100 && top_via) {
 	to_hdr->tag = top_via->branch_param;
     }