TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	1.4.3	
REFERENCE:	Q.724 § 7.5	
TITLE:	Continuity check test call	
SUBTITLE:	CCTC received: unsuccessful	
PURPOSE:	To verify that the continuity check procedure can be correctly received	
PRE–TEST CONDITIONS:	Ensure that no backward check tone is detected within the specified time out	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
SP	A		SP	B	
	<–––––––––––––––––	CCR	
	|--------------------------------------------------------------	Check tone	
	<–––––––––––––––––––	½	CCF	
						½		
			1–3 minutes	½	T10	
						½		
	<–––––––––––––––––––	^	CCR	
	|--------------------------------------------------------------	Check tone	
	<–––––––––––––––––––	½	CCF	
						½		
Maintenance staff alerted			1–3 minutes	½	T10	
						½		
	<–––––––––––––––––––	^	CCR	
	|-----------------------------------------------------------------	Check tone	
	<–––––––––––––––––	CCF	
			
TEST DESCRIPTION			
1.	Initiate the continuity test call procedure at SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	WAS THE SECOND CONTINUITY CHECK INITIATED WITHIN 1 TO 3 MINUTES? . . . . . .	
3.	CHECK B:	WERE THE MAINTENANCE STAFF ALERTED ON FAILURE OF THE SECOND CONTINUITY CHECK? . . . . . .	
4.	CHECK C:	WAS THE CHECK REPEATED AT INTERVALS OF 1 TO 3 MINUTES? . . . . . .	
5.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	1.4.4	
REFERENCE:	Q.724 § 7.5.3	
TITLE:	Continuity check test call	
SUBTITLE:	CCTC sent: unsuccessful	
PURPOSE:	To verify that the continuity test call procedure can be correctly invoked	
PRE–TEST CONDITIONS:	Ensure that no backward tone is detected within the specified timeout	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
SP	A		SP	B	
CCR	––––––––––––––>		
Check tone	 ---------------------------------------------------				--------|		
CCF		–
		½	––––––––––––––>		
	T10	½	1–3 minutes			
		½			
		½
CCR		–	––––––––––––––>		
Check tone	 ---------------------------------------------------				--------|		
			
CCF		–
		½	––––––––––––––>		
	T10	½	1–3 minutes		Maintenance staff alerted	
		½			
		½
CCR		–	––––––––––––––>		
Check tone	 ---------------------------------------------------				--------|		
			
CCF	––––––––––––––>		
			
TEST DESCRIPTION			
1.	Initiate the continuity test call procedure at SP A.
Record the message sequence using a signal monitor.	
2.	CHECK A:	WAS THE SECOND CONTINUITY CHECK INITIATED WITHIN 1 TO 3 MINUTES? . . . . . .	
3.	CHECK B:	WERE THE MAINTENANCE STAFF ALERTED ON FAILURE OF THE SECOND CONTINUITY CHECK? . . . . . .	
4.	CHECK C:	WAS THE CHECK REPEATED AT INTERVALS OF 1 TO 3 MINUTES? . . . . . .	
5.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	1.5.1	
REFERENCE:	Q.724 § 6.5	
TITLE:	Receipt of unreasonable information	
SUBTITLE:	Received	
PURPOSE:	To verify that the action taken by a signalling point upon receipt of unreasonable signalling information is as stated in Q.724 § 6.5	
PRE–TEST CONDITIONS:	
a)	Arrange the data in signalling point B such that CLF, RLG, and UBL messages may be initiated	
b)	The circuit should be idle and unblocked	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
a)			
	<-------------------------	CLF	
	RLG	 ------------------------->		
b)			
	<-------------------------	RLG	
c)	<-------------------------	UBL	
	UBA	 ------------------------->		
TEST DESCRIPTION			
1.	Arrange for SP B to send a clear forward signal.	
2.	CHECK A:	IS THE CIRCUIT IDLE? . . . . . .	
3.	CHECK B:	WAS THE MESSAGE SEQUENCE AS IN a) ABOVE? . . . . . .	
4.	Arrange for SP B to send a release guard signal.	
5.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
6.	CHECK D:	WAS THE MESSAGE SEQUENCE AS IN b) ABOVE? . . . . . .	
7.	Arrange for SP B to send an unblocking signal.	
8.	CHECK E:	IS THE CIRCUIT IDLE? . . . . . .	
9.	CHECK F:	WAS THE MESSAGE SEQUENCE AS IN c) ABOVE? . . . . . .	
		
Note – This test covers only some of the ambiguous messages which could be received.

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.1.1	
REFERENCE:	Q.724 § 1	
TITLE:	Both way circuit selection	
SUBTITLE:	IAM sent by controlling SP	
PURPOSE:	To verify that signalling point A can initiate an outgoing call on a circuit capable of bothway operation when the controlling SP is A	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	Circuit selected is capable of bothway operation	
c)	Circuit selected is as in test number 2.1.2	
d)	SP A is the controlling signalling point	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	–––––––––––––––––>		
	<–––––––––––––––––	ACM	
	-----------------------------------------	Ringing tone	
	<–––––––––––––––––	ANC	
Speech	––––––––––––––––––	Speech	
CLF	–––––––––––––––––>		
	<–––––––––––––––––	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A TO SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	CAN RINGING TONE BE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.1.2	
REFERENCE:	Q.724 § 1	
TITLE:	Bothway circuit selection	
SUBTITLE:	IAM sent by non–controlling SP	
PURPOSE:	To verify that signalling point A can initiate an outgoing call on a circuit capable of bothway operation when the non–controlling SP is A	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	Circuit selected is capable of bothway operation	
c)	Circuit selected is as in test number 2.1.1	
d)	SP B is the controlling signalling point	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	–––––––––––––––––>		
	<–––––––––––––––––	ACM	
	-----------------------------------------	Ringing tone	
	<–––––––––––––––––	ANC	
	Speech	––––––––––––––––––		
	CLF	–––––––––––––––––>		
	<–––––––––––––––––	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	CAN RINGING TONE BE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.2.1	
REFERENCE:	Q.724 § 1	
TITLE:	Called address sending	
SUBTITLE:	“EN BLOC” operation	
PURPOSE:	To verify that a call can be successfully established (all digits included in the IAM)	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	The exchange data is arranged such that all digits are included in the IAM	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	–––––––––––––––––>		
	<–––––––––––––––––	ACM	
	------------------------------------------	Ringing tone	
	<–––––––––––––––––	ANC	
	Speech	––––––––––––––––––	Speech	
	CLF	–––––––––––––––––>		
	<–––––––––––––––––	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
8.	For validation testing repeat this test in the reverse direction	
	Where SPA is in a position to know, by digit analysis that the final digit has been sent. Confirm that an End–of–pulsing (ST) signal is included in the IAM.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.2.2	
REFERENCE:	Q.724 § 1	
TITLE:	Called address sending	
SUBTITLE:	Overlap operation (with SAM and SAO)	
PURPOSE:	To verify that signalling point A can initiate a call using an IAM followed by SAM and a SAO	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	The signalling point data is arranged such that digits are generated in an IAM followed by a SAM and a SAO	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	SAM	 ------------------------->		
	SAO	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 ––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
8.	For validation testing repeat this test in the reverse direction.	
	Note –	The message flow may not be as above
	(There may be various SAMs and SAOs).	
	Where SPA is in a position to know by digit analysis that the final digit has been sent. Confirm that an end–of–pulsing (ST) signal is included in the last address message.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.3.1	
REFERENCE:	Q.724 § 1.6 and 1.10	
TITLE:	Successful call set–up	
SUBTITLE:	Ordinary call (with various ACM and ANS)	
PURPOSE:	To verify that a call can be successfully completed using various combinations of address complete messages and answer messages	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 ––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	CAN RINGING TONE BE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
8.	Repeat steps 1–7 with all combinations of bits A&B in the address complete message.	
9.	Repeat steps 1–8 with ANC replaced with an ANN.	
10.	Repeat this test in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.3.2	
REFERENCE:	Q.724 § 1	
TITLE:	Successful call set–up	
SUBTITLE:	Call switched via a satellite	
PURPOSE:	To verify the satellite indicator in the initial address message is correctly set	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	The signalling point data is arranged such that the call is switched via a satellite connection or has a satellite connection already included in the path	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 ––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
8.	CHECK E:	WAS THE SATELLITE INDICATOR BIT IN THE IAM SET TO 1? . . . . . .	
9.	For validation testing repeat this test in the reverse direction? . . . . . .	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.3.3	
REFERENCE:	Q.724 § 11	
TITLE:	Successful call set–up	
SUBTITLE:	Test for echo suppressor call set–up	
PURPOSE:	To verify that a call can be successfully established with the inclusion of echo suppressors	
PRE–TEST CONDITIONS:	
a)	Called termination is free	
b)	The signalling point data is arranged such that the call is routed over a route requiring echo suppressors or already has an echo suppressor included in the connection	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	CHECK C:	IS ECHO PERCEIVED BY EITHER PARTY? . . . . . .	
6.	The calling party should clear the call.	
7.	CHECK D:	IS THE CIRCUIT IDLE? . . . . . .	
8.	CHECK E:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
9.	CHECK F:	WAS THE MESSAGE INDICATOR BIT G (OUTGOING HALF ECHO SUPPRESSOR INCLUDED) IN THE IAM SET TO 1? . . . . . .	
10.	CHECK G:	WAS THE MESSAGE INDICATOR BIT D (INCOMING HALF ECHO SUPPRESSOR INCLUDED) IN THE ACM SET TO 1? . . . . . .	
11.	For validation testing repeat this test in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.3.4	
REFERENCE:	Q.724 § 5	
TITLE:	Successful call set–up	
SUBTITLE:	Blocking and unblocking during a call (initiated)	
PURPOSE:	To verify that the circuit blocking and unblocking procedure can be correctly initiated during a call	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 –––––––––––	Speech	
	BLO	 ------------------------->		
	<-------------------------	BLA	
	CLF	 ------------------------->		
	<-------------------------	RLG	
	UBL	 ------------------------->		
	<-------------------------	UBA	
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	CAN RINGING TONE BE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	SP A should initiate circuit blocking relating to the circuit used for this call.	
6.	CHECK C:	IS SPEECH STILL POSSIBLE? . . . . . .	
7.	The calling party should clear the call.	
8.	CHECK D:	VERIFY THAT A CALL CAN ONLY BE ORIGINATED ON THIS CIRCUIT BY SP A? . . . . . .	
9.	SP A should send an unblocking signal.	
10.	CHECK E:	VERIFY THAT A CALL CAN BE SUCCESSFULLY ORIGINATED FROM EITHER SP.	
11.	CHECK F:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
12.	Repeat this test in the reverse direction.	
	Note – The blocking signal may be generated after the call has cleared.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	2.3.5	
REFERENCE:	Q.724 § 5	
TITLE:	Successful call set–up	
SUBTITLE:	Blocking and unblocking during a call (received)	
PURPOSE:	To verify that the circuit blocking and unblocking procedure can be correctly received during a call	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	––––––––––––	Speech	
	<-------------------------	BLO	
	BLA	 ------------------------->		
	CLF	 ------------------------->		
	<-------------------------	RLG	
	<-------------------------	UBL	
	UBA	 ------------------------->		
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	CAN RINGING TONE BE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	SP B should initiate circuit blocking relating to the circuit used for this call.	
6.	CHECK C:	IS SPEECH STILL POSSIBLE? . . . . . .	
7.	The calling party should clear the call.	
8.	CHECK D:	VERIFY THAT A CALL CAN ONLY BE ORIGINATED ON THIS CIRCUIT BY SP B? . . . . . .	
9.	SP B should send an unblocking signal.	
10.	CHECK E:	VERIFY THAT A CALL CAN BE SUCCESSFULLY ORIGINATED FROM EITHER SP.	
11.	CHECK F:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
12.	Repeat this test in the reverse direction.	
	Note – The blocking signal may be generated after the call has cleared.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	3.1	
REFERENCE:	Q.724 § 1.14	
TITLE:	Normal call release	
SUBTITLE:	Calling party clears before address complete	
PURPOSE:	To verify that the calling party can successfully release a call prior to receipt of an address complete message	
PRE–TEST CONDITIONS:	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	The calling party should clear the call prior to receipt of the address complete signal.	
3.	CHECK A:	IS THE CIRCUIT IDLE? . . . . . .	
4.	CHECK B:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
5.	Repeat this test in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	3.2	
REFERENCE:	Q.724 § 1.14	
TITLE:	Normal call release	
SUBTITLE:	Calling party clears before answer	
PURPOSE:	To verify that the calling party can successfully release a call prior to receipt of answer	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The calling party should clear the call prior to receipt of an answer signal.	
4.	CHECK B:	IS THE CIRCUIT IDLE? . . . . . .	
5.	CHECK C:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
6.	For validation testing this test should be repeated in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	3.3	
REFERENCE:	Q.724 § 1.14	
TITLE:	Normal call release	
SUBTITLE:	Calling party clears after answer	
PURPOSE:	To verify that the calling party can successfully release a call in the speech state	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 ––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The calling party should clear the call.	
6.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
7.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
8.	For validation testing this test should be repeated in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	3.4	
REFERENCE:	Q.724 § 1.14	
TITLE:	Normal call release	
SUBTITLE:	Called party clears	
PURPOSE:	To verify that the calling party can successfully release a call in the clear back state	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	––––––––––––	Speech	
	<-------------------------	CBK	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The called party should clear the call.	
6.	The calling party should clear the call.	
7.	CHECK C:	IS THE CIRCUIT IDLE? . . . . . .	
8.	CHECK D:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
9.	For validation testing repeat this test in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	3.5	
REFERENCE:	Q.724 § 1.14	
TITLE:	Normal call release	
SUBTITLE:	Called party clears and reanswers	
PURPOSE:	To verify that the called subscriber can successfully clear and reanswer a call in the speech state	
PRE–TEST CONDITIONS:	Called termination is free	
CONFIGURATION:	1	TYPE OF TEST:	VAT and CPT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	ACM	
	––––––––––––	Ringing tone	
	<-------------------------	ANC	
	Speech	 ––––––––––––	Speech	
	<-------------------------	CBK	
	<-------------------------	RAN	
	Speech	 ––––––––––––	Speech	
	CLF	 ------------------------->		
	<-------------------------	RLG	
TEST DESCRIPTION			
1.	Make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS RINGING TONE HEARD? . . . . . .	
3.	The called party should answer the call.	
4.	CHECK B:	IS SPEECH POSSIBLE? . . . . . .	
5.	The called party should clear the call.	
6.	The called party should reanswer the call.	
7.	CHECK C:	IS SPEECH STILL POSSIBLE? . . . . . .	
8.	The calling party should clear the call.	
9.	CHECK D:	IS THE CIRCUIT IDLE? . . . . . .	
10.	CHECK E:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
11.	For validation testing repeat this test in the reverse direction.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	4.1.1	
REFERENCE:	Q.724 § 1.8	
TITLE:	SEC	
SUBTITLE:	SEC received	
PURPOSE:	To verify the call will be immediately released by the outgoing signalling point if a switching equipment congestion signal is received and the correct indication is given to the calling party	
PRE–TEST CONDITIONS:	Arrange the data in signalling point B such that switching equipment congestion is returned to the request	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	SEC	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Attempt to make a call from SP A to SP B.
Record the message sequence with a signal monitor.	
2.	CHECK A:	IS THE APPROPRIATE TONE OR ANNOUNCEMENT RETURNED TO THE CALLING PARTY? . . . . . .	
3.	CHECK B:	IS THE CIRCUIT IDLE? . . . . . .	
4.	CHECK C:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
		
	Note – It may not be possible to confirm that the appropriate tone is returned to the calling party. In this case it must be verified that the signalling point under test retransmits the signal received.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	4.1.2	
REFERENCE:	Q.724 § 1.8	
TITLE:	SEC	
SUBTITLE:	SEC sent	
PURPOSE:	To verify that SP A is able to generate a switching equipment congestion message	
PRE–TEST CONDITIONS:	Arrange the data in SP A such that switching equipment congestion is returned to the call request	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	<-------------------------	IAM	
	SEC	 ------------------------->		
	<-------------------------	CLF	
	RLG	 ------------------------->		
			
TEST DESCRIPTION			
1.	Attempt to make a call from SP B to SP A.
Record the message sequence with a signal monitor.	
2.	CHECK A:	IS THE APPROPRIATE TONE OR ANNOUNCEMENT RETURNED TO THE CALLING PARTY? . . . . . .	
3.	CHECK B:	IS THE CIRCUIT IDLE? . . . . . .	
4.	CHECK C:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
		
	Note – It may not be possible to confirm that the appropriate tone is returned to the calling party. In this case it must be verified that the signalling point under test retransmits the signal received.	

TUP LEVEL 4 TEST SPECIFICATION
TEST NUMBER:	4.2.1	
REFERENCE:	Q.724 § 1.8	
TITLE:	CGC	
SUBTITLE:	CGC received	
PURPOSE:	To verify that a call will be immediately released by the outgoing signalling point if a circuit group congestion signal is received and the correct indication is given to the calling party	
PRE–TEST CONDITIONS:	Arrange the data in signalling point B such that a circuit group congestion signal is returned to the call request	
CONFIGURATION:	1	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
EXPECTED MESSAGE SEQUENCE:	
	SP	A		SP	B	
	IAM	 ------------------------->		
	<-------------------------	CGC	
	CLF	 ------------------------->		
	<-------------------------	RLG	
			
TEST DESCRIPTION			
1.	Attempt to make a call from SP A to SP B.
Record the message sequence using a signal monitor.	
2.	CHECK A:	IS THE APPROPRIATE TONE OR ANNOUNCEMENT RETURNED TO THE CALLING PARTY? . . . . . .	
3.	CHECK B:	IS THE CIRCUIT IDLE? . . . . . .	
4.	CHECK C:	WAS THE MESSAGE SEQUENCE AS ABOVE? . . . . . .	
		
	Note 1 – An address complete signal (without subscriber free) may be sent in the backward direction before a CGC signal is sent.	
	Note 2 – It may not be possible to confirm that the appropriate tone is returned to the calling party. In this case it must be verified that the signalling point under test retransmits the signal received.