isupcs~2a

Technical Centre of Telecommunications and Posts Prague��

Czech RepublicTel. +420 2 7992111, fax. +420 2 7934560, tx. 121 747 vus c

CCITT Signalling system No. 7National specification of MTP and ISUPfor Czech Republic and Slovak Republic

Version 1

Annex ECorrections

30 June 1997

___________________________________________________________________________TESTCOM, MTP/ISUP CS, Version 1, Annex E Pag1

Annex E

Corrections

Correction No. 1, June 6, 1994

Part B, Chapter 14. System reaction tableThe general note bellow the system reaction table in the chapter 14 shall be modified asfollows:General note:In case that an announcement or an in-band tone is sent on ISUP-trunk towards the callinsubscriber the procedure is the same as for analog trunks. An announcement or a tone is sentfor 30 s after REL message follows. The cause value used after timer expiration forannouncement sending is #31 "Normal, unspecified".After answer or answer timer expiration or reanswer timer expiration RE with cause value#19 "No answer from user (user alerted)" is sent backwards. No congestion tone is sent on anISUP trunk in these cases.


Correction No. 2, September 6, 1995

Part B, Chapter 10.1 GenerallyThe third paragraph of this chapter shall be extended by following text:In case of call forwarding for ISDN access normall early ACM scenarios is used. Afterintroduction of charging based on ACM reception late ACM scenarios should be used.


Correction No. 3, September 6, 1995

Part B, Chapter 14. System reaction tableSystem reaction table shall corrected as follows (corrections are indicated b underlining):

Called Incoming trunpart SS7 signalling

Originating categor of calling subscriber(see calling party's category table)

Cat. Status National National National National Intern. Intern.traffic traffic traffic traffic traffic traffic10,12, 11 13 9 0,10,11, 1-815,224 12,15

NORMAL FREE 7B6 S 7B6 S 7B7 S 7B6 S 7B6 S 7B6 SBUSY (17) R 7B6 C (17) R 7B3 N (17) R (17) RLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RABSE FU6 F FU6 F FU6 F FU6 F FU6 F FU6 FDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12nN-IMM FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 FeN-BY FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 FeN-NRE FN6 S FN6 S FN6 S FN6 S FN6 S FN6 SANNM 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 AxFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

CHNR*

FAULTL (22) R (22) R (22) R (22) R (22) R (22) R CCTR *

FAULTL DB7 A9n DB7 A9n (1) R DB7 A9n (1) R (1) R

DNNASS*

FAULTL (1) R (1) R (1) R (1) R (1) R (1) R BADP FREE DB7 A1n DB7 A1n 7B7 S DB7 A1n (27) R (27) R

BUSY DB7 A1n DB7 A1n (17) R DB7 A1n (27) R (27) RFAULTL DB7 A1n DB7 A1n (27) R DB7 A1n (27) R (27) R

TRSTR FREE (1) R (1) R 7B7 S (1) R (1) R (1) RBUSY (1) R (1) R (17) R (1) R (1) R (1) RFAULTL (1) R (1) R (27) R (1) R (1) R (1) R

NTCD FREE 7B7 S 7B7 S 7B7 S 7B7 S 7B7 S 7B7 SBUSY (17) R 7B7 C (17) R 7B7c N (17) R (17) RLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RABSE FU7 F FU7 F FU7 F FU7 F FU7 F FU7 FDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12nN-IMM FU7 Fe FU7 Fe FU7 Fe FU7 Fe FU7 Fe FU7 FeN-BY FB7 Fe FB7 Fe FB7 Fe FB7 Fe FB7 Fe FB7 FeN-NRE FN7 S FN7 S FN7 S FN7 S FN7 S FN7 SANNM 7B7 Axn 7B7 Axn 7B7 Axn 7B7 Axn 7B7 Axn 7B7 AxnFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

OPERPR FREE (4) R 7B6 S 7B7 S 7B6 S (4) R 7B6 SBUSY (4) R 7B6 C (17) R 7B3 N (4) R (17) RLOOS (4) R DB7 A8n (27) R DB7 A8n (4) R (27) RABSE (4) R FU6 F FU6 F FU6 F (4) R FU6 FDNDS (4) R DB7 A12n DB7 A12n DB7 A12n (4) R DB7 A12nN-IMN (4) R FU6 Fe FU6 Fe FU6 Fe (4) R FU6 FeN-BY (4) R FB6 Fe FB6 Fe FB6 Fe (4) R FB6 FeN-NRE (4) R FN6 S FN6 S FN6 S (4) R FN6 SANNM (4) R 7B6 Ax 7B6 Ax 7B6 Ax (4) R 7B6 AxFAULTL (4) R (27) R (27) R (27) R (4) R (27) R





NOT FREE 7B6 S 7B6 S 7B7 S 7B6 S 7B6 S 7B6 S KOFF BUSY (17) R 7B6 C (17) R (29) R (17) R (17) R

LOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RABSE FU6 F FU6 F FU6 F FU6 F FU6 F FU6 FDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12nN-IMM FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 FeN-BY FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 FeN-NRE FN6 S FN6 S FN6 S FN6 S FN6 S FN6 SANNM 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 AxFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

MINC FREE (4) R (4) R 7B7 S (4) R (4) R (4) RBUSY (4) R (4) R (17) R (4) R (4) R (4) RLOOS (4) R (4) R (27) R (4) R (4) R (4) RFAULTL (4) R (4) R (27) R (4) R (4) R (4) R

NAT FREE 7B6 S 7B6 S 7B7 S 7B6 S (4) R (4) RBUSY (17) R 7B6 C (17) R 7B3 N (4) R (4) RLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (4) R (4) RABSE FU6 F FU6 F FU6 F FU6 F (4) R (4) RDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n (4) R (4) RN-IMM FU6 Fe FU6 Fe FU6 Fe FU6 Fe (4) R (4) RN-BY FB6 Fe FB6 Fe FB6 Fe FB6 Fe (4) R (4) RN-NRE FN6 S FN6 S FN6 S FN6 S (4) R (4) RANNM 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax (4) R (4) RFAULTL (27) R (27) R (27) R (27) R (4) R (4) R

CWT FREE 7B6 S 7B6 S 7B7 S 7B6 S 7B6 S 7B6 SBUSY 7B6 Cw 7B6 Cw 7B7 Cw 7B3 N 7B6 Cw 7B6 CwLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

CBOX FREE 7B6p S 7B6p S 7B7p S (4) R 7B6p S (4) R -16 BUSY (17) R 7B6p C (17) R (4) R (17) R (4) R

LOOS DB7 A8n DB7 A8n (27) R (4) R (27) R (4) RFAULTL (27) R (27) R (27) R (4) R (27) R (4) R


Correction No. 4, March 26, 1996

Part A. MTP-CS Specification

Add to the end of the chapter:

Clarification to CCITT Recommendation Q.704, clause 14.2.2 Sub-service fieldNetwork indicator value NI=11 is used for an intermediate network in the national network.The possibilit of programming NI=11 is requested in all transit exchanges and selected localexchanges where gateways to other operator’s networks may be located.


Correction No. 5, March 26, 1996

Part B., Chapter 14 System reaction tableSystem reaction table shall be corrected as follows (corrections are indicated b underlining):




NORMAL FREE 7B6 S 7B6 S 7B7 S 7B6 S 7B6 S 7B6 SBUSY (17) R 7B6 C (17) R 7B3 N (17) R (17) RLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RABSE FU6 F FU6 F FU6 F FU6 F FU6 F FU6 FDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12nN-IMM FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 Fe FU6 FeN-BY FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 Fe FB6 FeN-NRE FN6 S FN6 S FN6 S FN6 S FN6 S FN6 SANNM 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 Ax 7B6 AxFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

CHNR*

FAULTL (22) R (22) R (22) R (22) R (22) R (22) R CCTR *

FAULTL DB7 A9n DB7 A9n (1) R DB7 A9n (1) R (1) R

DNNASS*

FAULTL (1) R (1) R (1) R (1) R (1) R (1) R BADP FREE DB7 A1n DB7 A1n 7B7 S DB7 A1n (27) R (27) R

BUSY DB7 A1n DB7 A1n (17) R DB7 A1n (27) R (27) RFAULTL DB7 A1n DB7 A1n (27) R DB7 A1n (27) R (27) R

TRSTR FREE (1) R (1) R 7B7 S (1) R (1) R (1) RBUSY (1) R (1) R (17) R (1) R (1) R (1) RFAULTL (1) R (1) R (27) R (1) R (1) R (1) R

NTCD FREE 7B7 S 7B7 S 7B7 S 7B7 S 7B7 S 7B7 SBUSY (17) R 7B7 C (17) R 7B7c N (17) R (17) RLOOS DB7 A8n DB7 A8n (27) R DB7 A8n (27) R (27) RABSE FU7 F FU7 F FU7 F FU7 F FU7 F FU7 FDNDS DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12n DB7 A12nN-IMM FU7 Fe FU7 Fe FU7 Fe FU7 Fe FU7 Fe FU7 FeN-BY FB7 Fe FB7 Fe FB7 Fe FB7 Fe FB7 Fe FB7 FeN-NRE FN7 S FN7 S FN7 S FN7 S FN7 S FN7 SANNM 7B7 Ax 7B7 Ax 7B7 Ax 7B7 Ax 7B7 Ax 7B7 AxFAULTL (27) R (27) R (27) R (27) R (27) R (27) R

OPERPR FREE (4) R 7B6 S 7B7 S 7B6 S (4) R 7B6 SBUSY (4) R 7B6 C (17) R 7B3 N (4) R (17) RLOOS (4) R DB7 A8n (27) R DB7 A8n (4) R (27) RABSE (4) R FU6 F FU6 F FU6 F (4) R FU6 FDNDS (4) R DB7 A12n DB7 A12n DB7 A12n (4) R DB7 A12nN-IMN (4) R FU6 Fe FU6 Fe FU6 Fe (4) R FU6 FeN-BY (4) R FB6 Fe FB6 Fe FB6 Fe (4) R FB6 FeN-NRE (4) R FN6 S FN6 S FN6 S (4) R FN6 SANNM (4) R 7B6 Ax 7B6 Ax 7B6 Ax (4) R 7B6 AxFAULTL (4) R (27) R (27) R (27) R (4) R (27) R


Correction No. 6, May 27, 1996

Part B; Chapter 2.5 Parameters formats and codes used in INF message

At the end of this chapter should be inserted following text:

The National forward call indicators parameter should be included in the INF message in caseof interworking with CAS (national version of R2 MFC register signalling) whenidentification is terminated with I-13 signal (“end-of-identification - immediate charge servicefor semiautomatic call“) only.

The Calling party’s categor parameter should be included in the INF message in case ofinterworking with CAS (national version of R2 MFC register signalling) when identificationis terminated with I-14 signal (“end-of-identification - payphone“) only.

As information passed in National forward call indicators parameter or Calling party’scategor parameter in above mentioned cases is received b the system as one of the results ofidentification request, sending of such information should be considered as sending of asolicited information.

Annex D, Chapter 3.18 Information indicators

Definition of the Calling party’s category response indicator should be modified as follows:

bit F: Calling party's category response indicator0 calling party's category not included1 calling party's categor included (Note)

Note - The Calling party’s categor parameter should be included in the INF message incase of interworking with CAS (national version of R2 MFC register signalling)when identification is terminated with I-14 signal (“end-of-identification -payphone“) only.

Annex D, Chapter 4, Table D-10

Table D-10 should be modified as follows:

TABLE D-10Information message

Parameter Reference§

Type Length(octets)

Message type 1 F 1Information indicators 3.18 F 2Calling part number 3.6 O 5 ÷ 12Calling party’s categor 3.7 O 3National forward call indicators 3.20 O 3End of optional parameters indicator 3.14 O 1


Correction No. 7, May 27, 1996

Part B, Chapter 6.4 Parameter formats and codes used in ACM and CPG

Following text should be added at the end of this chapter:

If CPG message is sent backwards in order to initiate malicious call holding (Holdingindicator = “holding requested“) then Event information parameter shall be set as follows:Event indicator = “PROGRESS“Event presentation restricted indicator = “presentation restricted“



Part B, Chapter 6

Following subchapter should extend chapter 6:

6.7 Interaction of Call forwarding no reply and Malicious call identificationsupplementar services and corresponding signalling procedures

Note: When Call forwarding unconditional or Call forwarding busy supplementaryservice is active, Malicious call identification supplementary service cannot beinvoked.

When Call forwarding no reply supplementary service is active, the MCIDsupplementary service can be invoked if the call is answered before diversion conditionis met. The following procedures are used.

Case E1:Incomin call (ISUP CS) with A-identification and with MLC trace. SUB_B with CFNR andMCID active in the digital exchange. SUB_B goes off-hook before CFNR timer expiration.The same procedure is applicable for both, local and toll, incoming trunks and all incomingcalls.

See Case A1.

Case E2:Incoming call (ISUP CS) with A-identification and without MLC-trace. SUB_B with CFNRand MCID supplementary services in the digital exchange. SUB_B goes off-hook beforeCFNR timer expiration. The same procedure is applicable for both, local and toll, incomingtrunks and all incoming calls.

See Case A2.


Case E3:Incomin call (ISUP CS) without A-identification and with MLC-trace. SUB_B with CFNRand MCID active in the digital exchange. SUB_B goes off-hook before CFNR timerexpiration. Incoming trunk - local and national automatic calls.

ExchangeOrig./Inc.- Term./Otg.-interface interfaceInc. trun SUB_B (CFNR)

Signal, 'Tone' Signal, 'Tone' Remarks to condition/actionIAM,INFA-nbr notavailable 1)

→ Recognition that SUB_B has MLC facility allocated

MLC-ActivationMLC-store

Storage of MLC-data: trunk-EN, B-DN

ACM ← Address completeSubscriber line free

'Ring. T.' ← → 'Ring. C.' Start ringing of SUB_BANM ← ← Off-hoo SUB_B goes off-hook (answer)CPG(HOLD) ←

Conversation Conversation SUB_A/SUB_B← MLCT SUB_B pushes R-button (dials digit '1')

MLC traceMLC-deletion

Printout of data, urgent alarDeletion of MLC-data

Conversation Conversation SUB_A/SUB_B continues

--------------------------------------------------------------------------------------------------------------------------------------← On-hoo SUB_B goes on-hook, SUB_B release

(no reanswer timer is started)--------------------------------------------------------------------------------------------------------------------------------------SUS ← MML command causes sending of SUS to release

the whole connection--------------------------------------------------------------------------------------------------------------------------------------REL → → 'Cong. T.' REL received, congestion tone sentRLC ←

Note:1) A-number can be in IAM. If no A-number is in IAM, it can be requested by INR.


Case E4:Incomin call (ISUP CS) without A-identification and with MLC-trace. SUB_B with CFNRand MCID active in the digital exchange. SUB_B goes off-hook before CFNR timerexpiration. Incoming trunk - toll or international or semiautomatic call.

See Case A4.

Case E5:Incoming call (ISUP CS) without A-identification and without MLC-trace. SUB_B withCFNR and MCID active in the digital exchange. SUB_B goes off-hook before CFNR timerexpiration. Incoming trunk - local and national automatic calls.


Signal, 'Tone' Signal, 'Tone' Remarks to condition/actionIAM,INFA-nbr notavailable 1)

→ Recognition that SUB_B has MLC facility allocated

MLC-activationMLC-store

Storage of MLC-data: trunk-EN, B-DN


'Ring. T.' ← → 'Ring. C.' Start ringing of SUB_BANM ← ← Off-hoo SUB_B goes off-hook (answer), ANM sentCPG(HOLD) ←

Conversation Conversation SUB_A/SUB_B

--------------------------------------------------------------------------------------------------------------------------------------SUS ← ← On-hoo SUB_B goes on-hook, SUB_B release (no-

reanswer timer is started)MLC-deletion Deletion of MLC data

REL → REL receivedRLC ←--------------------------------------------------------------------------------------------------------------------------------------REL → → 'Cong. T.' REL received, congestion tone sent, MLC-timer

startedRLC ←

MLC-timerMLC-deletion

MLC-timer expiredDeletion of MLC-data

--------------------------------------------------------------------------------------------------------------------------------------REL → → 'Cong. T.' REL received, congestion tone sentRLC ←

← On-hoo SUB_B goes on-hooMLC-deletion Deletion of MLC-data

Note:1) A-number can be in IAM. If no A-number is in IAM it can be requested by INR.


Case E6:Incomin call (ISUP CS) without A-identification and without MLC-trace. SUB_B withCFNR and MCID active in the digital exchange. SUB_B goes off-hook before CFNR timerexpiration. Incoming trunk - toll or international or semiautomatic call.

See Case A6.

Case E7:Incoming call (ISUP CS) without or with A-identification. SUB_B with CFNR and MCIDactive in the digital exchange. Call forwarding occurs.


Signal, 'Tone' Signal, 'Tone' Remarks to condition/actionIAM, (INF)1 → Recognition that SUB_B has MLC facility allocated

MLC-activationMLC-store

Storage of MLC-data: trunk-EN or A-DN (ifavailable), B-DN


'Ring. T.' ← → 'Ring. C.' Start ringing of SUB_B

CFNR-timer CFNR timer expired (stop ringing)

MLC-deletion Deletion of MLC data

→ IAM IAM sent to succeeding exchange

CPG (no HOLD) ← ← ACM ACM received, CPG without HOLD sent

ANM ← ← ANM

:::

1 A-number available or not available.



Part B, Chapter 14 System reaction table

Definition of DB7 should be changed as follows:

DB7ACMBackward call indicators:Charge indicator: “no charge“Called party's status indicator: “subscriber free“Called party’s categor indicator: “no indication“

Optional backward call indicators:In-band information indicator: “in-band information or appropriate

pattern now available“

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