Set the Caller ID "tag" on peers even if remote party information is present.

On incoming calls, we were setting the cid_tag on the dialog only if there was
no remote party information (Remote-Party-ID or P-Asserted-Identity) present.
The Caller ID tag is an invented parameter, though, and should be set no matter
the circumstance.

(closes issue ASTERISK-19859)
Reported by Thomas Arimont
(closes issue AST-884)
Reported by Trey Blancher



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@368807 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -16116,11 +16116,12 @@ static enum check_auth_result check_peer_ok(struct sip_pvt *p, char *of,
 			}
 			if (!ast_strlen_zero(peer->cid_name))
 				ast_string_field_set(p, cid_name, peer->cid_name);
-			if (!ast_strlen_zero(peer->cid_tag))
-				ast_string_field_set(p, cid_tag, peer->cid_tag);
 			if (peer->callingpres)
 				p->callingpres = peer->callingpres;
 		}
+		if (!ast_strlen_zero(peer->cid_tag)) {
+			ast_string_field_set(p, cid_tag, peer->cid_tag);
+		}
 		ast_string_field_set(p, fullcontact, peer->fullcontact);
 
 		if (!ast_strlen_zero(peer->context)) {