fix message sent on codec mismatch (bug #3306)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/v1-0@4776 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -2770,7 +2770,7 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req)
 			ast_getformatname_multiple(s3, slen, p->noncodeccapability));
 	}
 	if (!p->jointcapability) {
-		ast_log(LOG_WARNING, "No compatible codecs!\n");
+		ast_log(LOG_NOTICE, "No compatible codecs!\n");
 		return -1;
 	}
 	if (p->owner) {
@@ -7385,12 +7385,20 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 			}
 		} else {
 			if (p && !p->needdestroy) {
-				ast_log(LOG_NOTICE, "Unable to create/find channel\n");
-				if (ignore)
-					transmit_response(p, "503 Unavailable", req);
-				else
-					transmit_response_reliable(p, "503 Unavailable", req, 1);
-				p->needdestroy = 1;
+				if (!p->jointcapability) {
+					if (ignore)
+						transmit_response(p, "488 Not Acceptable Here", req);
+					else
+						transmit_response_reliable(p, "488 Not Acceptable Here", req, 1);
+					p->needdestroy = 1;	
+				} else {
+					ast_log(LOG_NOTICE, "Unable to create/find channel\n");
+					if (ignore)
+						transmit_response(p, "503 Unavailable", req);
+					else
+						transmit_response_reliable(p, "503 Unavailable", req, 1);
+					p->needdestroy = 1;	
+				}
 			}
 		}
 	} else if (!strcasecmp(cmd, "REFER")) {