Merge branch 'master' of https://forge.etsi.org/gitlab/emergency-communications/NG112 (b1538f51) · Commits · EMTEL - Emergency Communications / NG112 Conformance Test Suites

test_purposes/ecrf.tplan2

+83 −0

Original line number	Diff line number	Diff line
		@@ -691,6 +691,7 @@ Expected behaviour
		}
		}
		} //End of TP_ECRF_HTTP_POST_BV_07

		Test Purpose {
		TP Id TP_ECRF_HTTP_POST_BV_08
		Test objective
		@@ -763,4 +764,86 @@ Expected behaviour
		}
		}
		} //End of TP_ECRF_HTTP_POST_BV_08

		Test Purpose {
		TP Id TP_ECRF_HTTP_POST_BV_09
		Test objective
		"IUT successfully responds with multiple service URIs for a Point in multiple service boundaries"
		Reference
		"ETSI TS 103 479 Vm.t.e (yyyy-mm) Clause XXX EMERGENCY CALL ROUTING FUNCTION (ECRF)",
		"Next Generation 112 Long Term Definition http://www.eena.org/uploads/gallery/files/pdf/2013-03-15-eena_ng_longtermdefinitionupdated.pdf Clause 4.4",
		"https://tools.ietf.org/html/rfc5222"
		Config Id CFG_ECRF_01
		PICS Selection PICS_HTTP_POST_REQUEST and PICS_SERVICE_LOST
		Initial conditions with {
		the IUT entity havingServiceBoundaryFor the V_POLICE_SERVICE_BOUNDARY containing
		serviceMappingFor V_POLICE_SERVICE_URN containing
		URI indicating value V_POLICE_SIP_URI;
		;
		and the IUT entity havingServiceBoundaryFor the V_FIRE_SERVICE_BOUNDARY containing
		serviceMappingFor V_FIRE_SERVICE_URN containing
		URI indicating value V_FIRE_SIP_URI;
		;
		}
		Expected behaviour
		ensure that {
		when {
		the IUT entity receives a POST containing
		Uri indicating value "/service",
		Host,
		not Accept,
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "findService" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "location" containing
		element "Circle" inNamespace "http://www.opengis.net/pidflo/1.0" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" inNamespace "http://www.opengis.net/gml" indicating value CIRCLE_IN_V_FIRE_SERVICE_BOUNDARY_POS,
		element "radius" indicating value CIRCLE_IN_V_FIRE_SERVICE_BOUNDARY_RADIUS containing
		attribute "uom" indicating value "urn:ogc:def:uom:EPSG::9001"
		;
		;
		,
		element "service" indicating value "urn:service:sos";
		;
		;
		;
		;
		}
		then {
		the IUT entity sends a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "findServiceResponse" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "mapping" containing
		attribute "source",
		attribute "sourceId",
		attribute "lastUpdated",
		attribute "expires",
		element "service" indicating value V_FIRE_SERVICE_URN,
		element "uri" indicating value V_FIRE_SIP_URI;
		,
		element "mapping" containing
		attribute "source",
		attribute "sourceId",
		attribute "lastUpdated",
		attribute "expires",
		element "service" indicating value V_POLICE_SERVICE_URN,
		element "uri" indicating value V_POLICE_SIP_URI;
		,
		element "locationUsed"
		;
		;
		;
		;
		}
		}
		} //End of TP_ECRF_HTTP_POST_BV_09

		}
		No newline at end of file

test_purposes/esrp.tplan2

+437 −175

Original line number	Diff line number	Diff line
		@@ -26,20 +26,29 @@ Package NG112_ESRP {
		entities:
		- IUT
		- ECRF
		- LIS
		- PSAP
		;
		events:
		- receives //for packets coming from the network to the IUT
		- sends //for packets sent by the IUT to the network
		- forwards //forwards the previously received message to the next hop
		- isConfiguredWith //IUT is configured to use the ECRF
		- isConfiguredWith //IUT is configured to use the specified service
		- isReachableWith // the PSAP is reachable via the specified URI
		- isNotReachable // the PSAP is not reachable
		- receivedInitialInviteRequestAndSentLostQueryToEcrf // [ref esrp.txt:RECEIVED_INITITAL_INVITE_AND_SENT_LOST_REQUEST]
		- receivesLostResponseFor // IUT receives a LoST response for the give target URI [ref esrp.txt:RECEIVES_LOST_RESPONSE_FOR]
		- receivedInitialInviteRequestWithoutLocationAndSentHeldRequestToLisFor // [ref esrp.txt:RECEIVED_INITITAL_INVITE_WITHOUT_LOCATION_AND_SENT_HELD_REQUEST_FOR]
		- receivedInitialInviteRequestWithLocationReferenceAndSentGetRequestToLisFor // [ref esrp.txt:RECEIVED_INITITAL_INVITE_WITH_LOCATIONREFERENCE_AND_SENT_GET_REQUEST_FOR]
		- sendsLostQueryToEcrfFor // IUT sends a LoST request to the LIs with the given LOCATION [ref esrp.txt:SENDS_LOST_REQUEST_FOR]
		- receivesHeldResponseWith // IUT receives a HELD response with the give LOCATION [ref esrp.txt:RECEIVES_HELD_RESPONSE_WITH]
		- receivesLostResponseWith // IUT receives a LoST response with the give URN [ref esrp.txt:RECEIVES_LOST_RESPONSE_WITH]
		- receivesLocationResponseWith // IUT receives a Location response with the give LOCATION [ref esrp.txt:RECEIVES_LOCATION_RESPONSE_WITH]
		;
		}

		// Const {
		// DEVICE_NUMBER: "+33123456789";
		// PIDF [ref esrp.txt:PIDF];
		// SDP_AND_PIDF_MULTIPART [ref esrp.txt:SDP_AND_PIDF_MULTIPART];
		// SERVICE_URN_1: "urn:service:sos.police";
		// SIP_URI_1: "sip:police@city.com";
		@@ -76,7 +85,7 @@ Initial conditions with {
		Expected behaviour
		ensure that {
		when {
		the IUT entity receives a SIP_INVITE containing
		the IUT entity receives a TCP SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "multipart/mixed",
		body containing
		@@ -85,7 +94,7 @@ Expected behaviour
		;
		and the IUT entity sends a POST containing
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		body containingreceivedInitialInviteRequestWithLocationReferenceAndSentGetRequestToLisFor
		xmlMessage containing
		version indicating value "1.0",
		element "findService" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		@@ -151,7 +160,7 @@ Initial conditions with {
		Expected behaviour
		ensure that {
		when {
		the IUT entity receivesLostResponseFor the SIP_URI_1 from the ECRF entity
		the IUT entity receivesLostResponseWith the SIP_URI_1 from the ECRF entity
		}
		then {
		the IUT entity forwards the SIP_INVITE containing
		@@ -173,4 +182,257 @@ Expected behaviour
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_02

		Test Purpose {
		TP Id TP_ESRP_SIP_INVITE_BV_03
		Test objective
		"IUT uses HELD request to query location when INVITE does not contain the location"
		Reference
		"Next Generation 112 Long Term Definition http://www.eena.org/uploads/gallery/files/pdf/2013-03-15-eena_ng_longtermdefinitionupdated.pdf Clause 4.3",
		"https://tools.ietf.org/html/rfc5222"
		Config Id CFG_ESRP_01
		PICS Selection PICS_SERVICE_ESRP
		Initial conditions with {
		the IUT entity isConfiguredWith the ECRF
		and the IUT entity isConfiguredWith the LIS
		and the PSAP entity isReachableWith the SIP_URI_1
		and the IUT entity receivedInitialInviteRequestWithoutLocationAndSentHeldRequestToLisFor the DEVICE_NUMBER
		and the IUT entity receivesHeldResponseWith the LOCATION_1 from the LIS entity
		and the IUT entity sendsLostQueryToEcrfFor the LOCATION_1 to the ECRF entity
		}
		Expected behaviour
		ensure that {
		when {
		the IUT entity receivesLostResponseWith the SIP_URI_1 from the ECRF entity
		}
		then {
		the IUT entity forwards the SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "multipart/mixed",
		Route indicating value SIP_URI_1,
		Call_Info containing
		uri indicating value valid "Incident Tracking Identifier",
		purpose "EES-IncidentId"
		;,
		Call_Info containing
		uri indicating value valid "Call Identifier",
		purpose "EES-CallId"
		;,
		body containing
		SDP_AND_PIDF_MULTIPART
		;
		; to the PSAP entity
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_03

		Test Purpose {
		TP Id TP_ESRP_SIP_INVITE_BV_04
		Test objective
		"IUT uses HELD request to query location when INVITE contains location by reference"
		Reference
		"Next Generation 112 Long Term Definition http://www.eena.org/uploads/gallery/files/pdf/2013-03-15-eena_ng_longtermdefinitionupdated.pdf Clause 4.3",
		"https://tools.ietf.org/html/rfc5222"
		"https://tools.ietf.org/html/rfc6442"
		Config Id CFG_ESRP_01
		PICS Selection PICS_SERVICE_ESRP
		Initial conditions with {
		the IUT entity isConfiguredWith the ECRF
		and the IUT entity isConfiguredWith the LIS
		and the PSAP entity isReachableWith the SIP_URI_1
		and the IUT entity receivedInitialInviteRequestWithLocationReferenceAndSentGetRequestToLisFor the DEVICE_NUMBER
		and the IUT entity receivesLocationResponseWith the LOCATION_1 from the LIS entity
		and the IUT entity sendsLostQueryToEcrfFor the LOCATION_1 to the ECRF entity
		}
		Expected behaviour
		ensure that {
		when {
		the IUT entity receivesLostResponseWith the SIP_URI_1 from the ECRF entity
		}
		then {
		the IUT entity forwards the SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "multipart/mixed",
		Route indicating value SIP_URI_1,
		Call_Info containing
		uri indicating value valid "Incident Tracking Identifier",
		purpose "EES-IncidentId"
		;,
		Call_Info containing
		uri indicating value valid "Call Identifier",
		purpose "EES-CallId"
		;,
		body containing
		SDP_AND_PIDF_MULTIPART
		;
		; to the PSAP entity
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_04

		Test Purpose {
		TP Id TP_ESRP_SIP_INVITE_BV_05
		Test objective
		"IUT responds to OPTIONS requests"
		Reference
		"https://tools.ietf.org/html/rfc3261"
		Config Id CFG_ESRP_01
		PICS Selection PICS_SERVICE_ESRP
		Expected behaviour
		ensure that {
		when {
		the IUT entity receives a SIP_OPTIONS
		}
		then {
		the IUT entity sends a SIP_RESPONSE containing
		Status_Code indicating value "200 OK"
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_05

		Test Purpose {
		TP Id TP_ESRP_SIP_INVITE_BV_06
		Test objective
		"IUT successfully forwards an incoming SIP MESSAGE to the correct downstream element, based on the ECRF response"
		Reference
		"Next Generation 112 Long Term Definition http://www.eena.org/uploads/gallery/files/pdf/2013-03-15-eena_ng_longtermdefinitionupdated.pdf Clause 4.3",
		"https://tools.ietf.org/html/rfc5222"
		Config Id CFG_ESRP_01
		PICS Selection PICS_SERVICE_ESRP
		Initial conditions with {
		the IUT entity isConfiguredWith the ECRF
		and the PSAP entity isReachableWith the SIP_URI_1
		and the IUT entity receivedInitialInviteRequestAndSentLostQueryToEcrf
		}
		Expected behaviour
		ensure that {
		when {
		the IUT entity receives a TCP SIP_MESSAGE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "application/pidf+xml",
		body containing
		PIDF
		;
		;
		and the IUT entity sends a POST containing
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containingreceivedInitialInviteRequestWithLocationReferenceAndSentGetRequestToLisFor
		xmlMessage containing
		version indicating value "1.0",
		element "findService" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "location" containing
		element "Point" inNamespace "http://www.opengis.net/gml" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" indicating value LOCATION_1;
		,
		element "service" indicating value SERVICE_URN_1;
		;
		;
		;
		; to the ECRF entity
		and the IUT entity receives a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "findServiceResponse" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "mapping" containing
		attribute "source",
		attribute "sourceId",
		attribute "lastUpdated",
		attribute "expires",
		element "service" indicating value SERVICE_URN_1,
		element "uri" indicating value SIP_URI_1;
		,
		element "locationUsed"
		;
		;
		;
		; from the ECRF entity
		}
		then {
		the IUT entity forwards a SIP_MESSAGE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "application/pidf+xml",
		Route_Header indicating value SIP_URI_1
		body containing
		PIDF
		;
		; to the PSAP entity
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_06


		Test Purpose {
		TP Id TP_ESRP_SIP_INVITE_BV_07
		Test objective
		"IUT responds BUSY for an incoming SIP MESSAGE when downstream element is not reachable"
		Reference
		"Next Generation 112 Long Term Definition http://www.eena.org/uploads/gallery/files/pdf/2013-03-15-eena_ng_longtermdefinitionupdated.pdf Clause 4.3",
		"https://tools.ietf.org/html/rfc5222"
		Config Id CFG_ESRP_01
		PICS Selection PICS_SERVICE_ESRP
		Initial conditions with {
		the IUT entity isConfiguredWith the ECRF
		and the PSAP entity isNotReachable
		and the IUT entity receivedInitialInviteRequestAndSentLostQueryToEcrf
		}
		Expected behaviour
		ensure that {
		when {
		the IUT entity receives a TCP SIP_MESSAGE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "application/pidf+xml",
		body containing
		PIDF
		;
		;
		and the IUT entity sends a POST containing
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containingreceivedInitialInviteRequestWithLocationReferenceAndSentGetRequestToLisFor
		xmlMessage containing
		version indicating value "1.0",
		element "findService" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "location" containing
		element "Point" inNamespace "http://www.opengis.net/gml" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" indicating value LOCATION_1;
		,
		element "service" indicating value SERVICE_URN_1;
		;
		;
		;
		; to the ECRF entity
		and the IUT entity receives a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "findServiceResponse" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "mapping" containing
		attribute "source",
		attribute "sourceId",
		attribute "lastUpdated",
		attribute "expires",
		element "service" indicating value SERVICE_URN_1,
		element "uri" indicating value SIP_URI_1;
		,
		element "locationUsed"
		;
		;
		;
		; from the ECRF entity
		}
		then {
		the IUT entity sends a SIP_RESPONSE containing
		Status_Code indicating value "486 BUSY HERE"
		}
		}
		} //End of TP_ESRP_SIP_INVITE_BV_07

		}
		No newline at end of file

test_purposes/esrp.txt

+141 −3

Original line number	Diff line number	Diff line
		@@ -10,6 +10,31 @@ m=video 20002 RTP/AVP 31
		a=rtpmap:31 H261/90000


		*** PIDF
		<?xml version="1.0" encoding="UTF-8"?>
		<presence xmlns="urn:ietf:params:xml:ns:pidf"
		entity="pres:3650n87934c@ls.example.com">
		<tuple id="b650sf789nd">
		<status>
		<geopriv xmlns="urn:ietf:params:xml:ns:pidf:geopriv10">
		<location-info>
		<Point xmlns="http://www.opengis.net/gml"
		srsName="urn:ogc:def:crs:EPSG::4326">
		<pos>12.00, 53.00</pos>
		</Point>
		</location-info>
		<usage-rules
		xmlns:gbp="urn:ietf:params:xml:ns:pidf:geopriv10:basicPolicy">
		<gbp:retention-expiry>2006-01-11T03:42:28+00:00
		</gbp:retention-expiry>
		</usage-rules>
		<method>Wiremap</method>
		</geopriv>
		</status>
		<timestamp>2006-01-10T03:42:28+00:00</timestamp>
		</tuple>
		</presence>

		*** SDP_AND_PIDF_MULTIPART
		--boundary1
		Content-Type: application/sdp
		@@ -54,7 +79,7 @@ a=rtpmap:31 H261/90000


		*** RECEIVED_INITITAL_INVITE_AND_SENT_LOST_REQUEST
		the IUT entity receives a SIP_INVITE containing
		the IUT entity receives a TCP SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "multipart/mixed",
		body containing
		@@ -78,7 +103,7 @@ the IUT entity receives a SIP_INVITE containing
		;
		; to the ECRF entity

		*** RECEIVES_LOST_RESPONSE_FOR [TARGET_URI]
		*** RECEIVES_LOST_RESPONSE_WITH [TARGET_URI]
		the IUT entity receives a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		@@ -100,3 +125,116 @@ the IUT entity receives a SIP_INVITE containing
		;
		;
		; from the ECRF entity


		*** RECEIVED_INITITAL_INVITE_WITHOUT_LOCATION_AND_SENT_HELD_REQUEST_FOR [DEVICE_NUMBER]
		the IUT entity receives a UDP SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "application/sdp",
		P-Asserted-Identity indicating value tel:DEVICE_NUMBER,
		body containing
		SDP
		;
		;
		and the IUT entity sends a POST containing
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "locationRequest" inNamespace "urn:ietf:params:xml:ns:geopriv:held" containing
		element "locationType" indicating value "geodetic" containing
		attribute "exact" indicating value "true"
		;,
		element "device" inNamespace "urn:ietf:params:xml:ns:geopriv:held:id" containing
		element "uri" inNamespace "urn:ietf:params:xml:ns:geopriv:held:id" indicating value DEVICE_NUMBER
		;
		;
		;
		;
		; to the LIS entity

		*** RECEIVES_HELD_RESPONSE_FOR [LOCATION]
		the IUT entity receives a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		Content_type indicating value "application/held+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "locationResponse" inNamespace "urn:ietf:params:xml:ns:geopriv:held" containing
		element "presence" inNamespace "urn:ietf:params:xml:ns:pidf" containing
		attribute "entity" indicating value valid "pres:" uri,
		element "tuple" containing
		attribute "id",
		element "status" containing
		element "geopriv" inNamespace "urn:ietf:params:xml:ns:pidf:geopriv10" containing
		element "location-info" containing
		element "Point" inNamespace "http://www.opengis.net/gml" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" indicating value LOCATION
		;
		;
		;
		;
		;
		;
		;
		;
		;
		; from the LIS entity

		*** SENDS_LOST_REQUEST_FOR [LOCATION]
		the IUT entity sends a POST containing
		Content_type indicating value "application/lost+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "findService" inNamespace "urn:ietf:params:xml:ns:lost1" containing
		element "location" containing
		element "Point" inNamespace "http://www.opengis.net/gml" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" indicating value LOCATION;
		,
		element "service" indicating value SERVICE_URN_1;
		;
		;
		;
		; to the ECRF entity

		*** RECEIVED_INITITAL_INVITE_WITH_LOCATIONREFERENCE_AND_SENT_GET_REQUEST_FOR [DEVICE_NUMBER]
		the IUT entity receives a UDP SIP_INVITE containing
		Request_URI indicating value SERVICE_URN_1,
		Content_Type indicating value "application/sdp",
		Geolocation indicating value LOCATION_URI
		body containing
		SDP
		;
		;
		and the IUT entity sends a GET to the LOCATION_URI

		*** RECEIVES_LOCATION_RESPONSE_WITH [LOCATION]
		the IUT entity receives a httpResponse containing
		Status_Code indicating value "200 OK",
		version indicating value "1.0",
		Content_type indicating value "application/pidf+xml;charset=utf-8",
		body containing
		xmlMessage containing
		version indicating value "1.0",
		element "presence" inNamespace "urn:ietf:params:xml:ns:pidf" containing
		attribute "entity" indicating value valid "pres:" uri,
		element "tuple" containing
		attribute "id",
		element "status" containing
		element "geopriv" inNamespace "urn:ietf:params:xml:ns:pidf:geopriv10" containing
		element "location-info" containing
		element "Point" inNamespace "http://www.opengis.net/gml" containing
		attribute "srsName" indicating value "urn:ogc:def:crs:EPSG::4326",
		element "pos" indicating value LOCATION
		;
		;
		;
		;
		;
		;
		;
		; from the LIS entity

test_purposes/psap.tplan2

+112 −15

File changed.

Preview size limit exceeded, changes collapsed.

test_purposes/psap.txt

+29 −2

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@ THEN IUT sends OK
		THEN IUT receives ACK


		*** SDP
		*** SDP_ULAW
		v=0
		o=alice 2890844526 2890842807 IN IP4 atlanta.example.com
		s=-
		@@ -16,6 +16,18 @@ a=rtpmap:0 PCMU/8000
		m=video 20002 RTP/AVP 31
		a=rtpmap:31 H261/90000

		*** SDP_ALAW
		v=0
		o=alice 2890844526 2890842807 IN IP4 atlanta.example.com
		s=-
		c=IN IP4 192.0.2.1
		t=0 0
		m=audio 20000 RTP/AVP 0
		a=rtpmap:8 PCMA/8000
		m=video 20002 RTP/AVP 31
		a=rtpmap:31 H261/90000



		*** SDP_AND_PIDF_MULTIPART
		--boundary1
		@@ -58,3 +70,18 @@ a=rtpmap:31 H261/90000
		</tuple>
		</presence>
		--boundary1--

		*** inAnActiveIncomingCall
		WHEN the IUT entity receives a TCP SIP_INVITE containing
		Request_URI indicating value "urn:service:sos.police",
		Content_Type indicating value "multipart/mixed",
		body containing
		SDP_AND_PIDF_MULTIPART
		;
		;
		THEN the IUT sends TRYING (optional)
		THEN the IUT sends RINGING (optional)
		THEN the IUT sends OK
		THEN the IUT receives ACK


		No newline at end of file