For T.38 reINVITEs treat a 606 the same as a 488.

(closes issue #16792)
Reported by: vrban
Patches:
      t38_606.patch uploaded by vrban (license 756)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@249100 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -13092,6 +13092,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 		}
 		break;
 	case 488: /* Not acceptable here */
+	case 606: /* Not Acceptable */
 		xmitres = transmit_request(p, SIP_ACK, seqno, XMIT_UNRELIABLE, FALSE);
 		if (reinvite && p->udptl) {
 			/* If this is a T.38 call, we should go back to 
@@ -13646,6 +13647,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
 				handle_response_invite(p, resp, rest, req, seqno);
 			break;
 		case 488: /* Not acceptable here - codec error */
+		case 606: /* Not Acceptable */
 			if (sipmethod == SIP_INVITE)
 				handle_response_invite(p, resp, rest, req, seqno);
 			break;