added value check for TC_ESCNULL

		}

	}

	testcase TC_ESCNULL() runs on SipSimuEx

	testcase TC_ESCNULL_V() runs on SipSimuEx

	{

		tc_defaultTimeout.start;

		alt

		{

			[]sipPort.receive(REGISTER_Request:{requestLine := {method := REGISTER_E, requestUri := {scheme := "sip", userInfo := omit, hostPort := {host := "example.com", portField := omit}, urlParameters := omit, headers := omit}, sipVersion := "SIP/2.0"}, msgHeader := {accept := omit, acceptContact := omit, acceptEncoding := omit, acceptLanguage := omit, alertInfo := omit, allow := omit, allowEvents := omit, authenticationInfo := omit, authorization := omit, callId := {fieldName := CALL_ID_E, callid := "escnull.39203ndfvkjdasfkq3w4otrq0adsfdfnavd"}, callInfo := omit, contact := {fieldName := CONTACT_E, contactBody := {contactAddresses := {{addressField := {nameAddr := {displayName := omit, addrSpec := {scheme := "sip", userInfo := {userOrTelephoneSubscriber := "%00", password := omit}, hostPort := {host := "host5.example.com", portField := omit}, urlParameters := omit, headers := omit}}}, contactParams := omit}, {addressField := {nameAddr := {displayName := omit, addrSpec := {scheme := "sip", userInfo := {userOrTelephoneSubscriber := "%00%00", password := omit}, hostPort := {host := "host5.example.com", portField := omit}, urlParameters := omit, headers := omit}}}, contactParams := omit}}}}, contentDisposition := omit, contentEncoding := omit, contentLanguage := omit, contentLength := {fieldName := CONTENT_LENGTH_E, len := 0}, contentType := omit, cSeq := {fieldName := CSEQ_E, seqNumber := 14398234, method := "REGISTER"}, date := omit, errorInfo := omit, event := omit, expires := omit, fromField := {fieldName := FROM_E, addressField := {addrSpecUnion := {scheme := "sip", userInfo := {userOrTelephoneSubscriber := "null-%00-null", password := omit}, hostPort := {host := "example.com", portField := omit}, urlParameters := omit, headers := omit}}, fromParams := {{id := "tag", paramValue := "839923423"}}}, historyInfo := omit, inReplyTo := omit, maxForwards := {fieldName := MAX_FORWARDS_E, forwards := 70}, mimeVersion := omit, minExpires := omit, minSE := omit, organization := omit, pAccessNetworkInfo := omit, pAssertedID := omit, pAssertedService := omit, pAssociatedURI := omit, path := omit, pCalledPartyID := omit, pChargingFunctionAddresses := omit, pChargingVector := omit, pEarlyMedia := omit, pMediaAuthorization := omit, pPreferredID := omit, priority := omit, privacy := omit, proxyAuthenticate := omit, proxyAuthorization := omit, proxyRequire := omit, pVisitedNetworkID := omit, rAck := omit, rSeq := omit, reason := omit, recordRoute := omit, referredBy := omit, referTo := omit, replyTo := omit, require := omit, retryAfter := omit, route := omit, securityClient := omit, securityServer := omit, securityVerify := omit, server := omit, serviceRoute := omit, sessionExpires := omit, subject := omit, subscriptionState := omit, supported := omit, timestamp := omit, toField := {fieldName := TO_E, addressField := {addrSpecUnion := {scheme := "sip", userInfo := {userOrTelephoneSubscriber := "null-%00-null", password := omit}, hostPort := {host := "example.com", portField := omit}, urlParameters := omit, headers := omit}}, toParams := omit}, unsupported := omit, userAgent := omit, via := {fieldName := VIA_E, viaBody := {{sentProtocol := {protocolName := "SIP", protocolVersion := "2.0", transport := "UDP"}, sentBy := {host := "host5.example.com", portField := omit}, viaParams := {{id := "branch", paramValue := "z9hG4bKkdjuw"}}}}}, warning := omit, wwwAuthenticate := omit, undefinedHeader_List := omit}, messageBody := omit, payload := ?})

			{

				setverdict(pass);

			}

			[]sipPort.receive(REGISTER_Request:?)

			{

				setverdict(inconc);

		// execute (TC_DBLREQ());

		execute (TC_ESC01_V());

		execute (TC_ESC02_V());

		execute (TC_ESCNULL());

		execute (TC_ESCNULL_V());

		execute (TC_ESCRURI_V());

		execute (TC_INSUF_I());

		execute (TC_INTMETH());