ET SS7 Especificação de Interface a 2Mbit/s com a Rede Fixa da MEO

Transcrição

1 ET SS7 Especificaçã de Interface a 2Mbit/s cm a Rede Fixa da MEO Sinalizaçã Canal Cmum (SS#7) MEO Serviçs de Cmunicações e Multimédia, S.A. 03 de dezembr de 2005 Data: Página 1 de 17 Versã: 1.2

2 Cnteúd 1. Intrduçã Características Físicas e Eléctricas d Interface Características de Cdificaçã Características de Estrutura de Trama Características Funcinais Sinalizaçã MTP SCCP ISUP... 4 ANEO ANEO A.4 PICS prfrma tables... 8 A.4.1 Glbal statement f cnfrmance... 8 A.4.2 Rles... 8 A.4.3 Capabilities... 8 A.4.4 Timers Data: Página 2 de 17 Versã: 1.2

3 1. Intrduçã Esta especificaçã define as características técnicas d interface a 2 Mbit/s para ligaçã entre a rede fixa da MEO e utras redes, utilizand a sinalizaçã de canal cmum SS#7. Cmutadr PT-C 2 Mbit/s Cmutadr Outra rede Interface SS#7 2. Características Físicas e Elétricas d Interface O interface de junçã deverá satisfazer as Recmendações G d ITU-T e T/TR da CEPT n que cncerne às características físicas e elétricas das junções a 2048 kbit/s sbre cabs caxiais cm impedância nminal de 75, devend prtant ser usad códig HDB3. 3. Características de Cdificaçã A cdificaçã ds sinais analógics deverá estar de acrd cm a Recmendaçã G.711 d ITU-T, devend ser cnsiderada smente a lei A, em cnfrmidade cm a Recmendaçã CEPT T/TR Características de Estrutura de Trama A estrutura de trama deverá estar de acrd cm a Recmendaçã G.704 d ITU-T. 5. Características Funcinais As características funcinais deverã estar de acrd cm a Recmendaçã G.732 d ITU-T. 6. Sinalizaçã A especificaçã da sinalizaçã de está descrita ns pnts 6.1, 6.2 e MTP Inclui s níveis 1, 2 e 3 d MTP (Message Transfer Part) e a Perfrmance d MTP, de acrd cm a nrma d ETSI ETS e a recmendaçã d ITU-T Q.706. A única restriçã existente é n que se refere a prcediment de cntrl de flux de utilizadr (User Flw Cntrl prcedure) que nã é aplicável. Data: Página 3 de 17 Versã: 1.2

4 6.2. SCCP Inclui nível 4 d SCCP (Signalling Cnnectin Cntrl Part) e a Perfrmance d SCCP, de acrd cm a nrma d ETSI ETS e as recmendações ITU-T Q ISUP Inclui nível 4 d ISUP (ISDN User Part) e a Perfrmance d ISUP, de acrd cm a nrma d ETSI versã 3 (EN V.3.2.2) e as recmendações ITU-T Q.76 (ISUP 97). N Anex 1, é apresentada sinteticamente a cnfrmidade da especificaçã relativamente às funcinalidades cnstantes na Tabela 1 / Q.761 da EN (V.3.2.2). N Anex 2 sã apresentads s aspets de detalhe da especificaçã, relativs à Chamada Básica. O frmat utilizad, sã as Tabelas ds "PICS prfrma fr ISDN User Part (ISUP) '92", incluíds n Anex A da Recmendaçã ITU-T Q (06/97). Cas OPS nã implemente s prcediments de taxaçã, serã inibidas na interface, tdas as mensagens e parâmetrs nacinais. Os prcediments de taxaçã dispníveis, cas OPS s implemente, estã suprtads na mensagem de taxaçã CRG definida nas nrmas internacinais, inclui, n entant, s seguintes parâmetrs de índle específica: Charging Cde Chargint Unit Nta: Para além da mensagem CRG e respetivs parâmetrs, prcediment de taxaçã utiliza ainda parâmetr "Natinal frward call indicatrs" a incluir na mensagem IAM, cm a cdificaçã específica, definida na especificaçã respetiva. Apesar deste parâmetr ser pcinal, a respetiva inclusã sistemática na mensagem IAM cm a cdificaçã adequada à cnfiguraçã aplicável é cnsiderada recmendada, na medida em que permite uma melhr gestã de cnfiguraçã para efeits de acert de cntas. Assim, mesm n cas em que uma rede nã pretenda receber infrmaçã de taxaçã (mensagens CRG), esta deverá preferencialmente incluir parâmetr "Natinal frward call indicatrs" (neste cas cm a cdificaçã "Charging infrmatin nt required"). Data: Página 4 de 17 Versã: 1.2

5 ANEO 1 Cnfrmidade cm a Tabela 1/Q.761 Basic Call Funcinalidade Implementada Nã implementada Speech / 3.1 Khz audi 64 Kbit/s unrestricted Multirate cnnectin types Nx64 kbit/s cnnectin types En-blc address signalling Overlap address signalling Transit netwrk selectin Cntinuity check Frward transfer Signalling prcedures fr cnnectin type w. fallback capability Cmpatibility prcedure Simple segmentatin Tnes and annuncements Prpagatin delay determinatin prcedure Enhanced ech cntrl signalling prcedures Simple ech cntrl signalling prcedures Autmatic repeat attempt Blcking and unblcking f circuits and circuit grups Circuit grup query Dual seizure Transmissin alarm handling fr digital inter-exchange circuits Reset f circuits and circuit grups Data: Página 5 de 17 Versã: 1.2

6 Funcinalidade Implementada Nã implementada Receipt f unreasnable signalling infrmatin Access delivery infrmatin Transprtatin f user teleservice infrmatin Suspend and resume Temprary trunk blcking ISDN user part signalling cngestin cntrl Autmatic cngestin cntrl Interactin between ISUP and INAP Unequipped circuit identificatin cde ISDN user part availability cntrl MTP pause and resume Overlength messages Temprary alternative ruting (TAR) Hp cunter prcedure Cllect call request prcedure Generic Signalling Prcedures fr Supplementary Services End-t-end signalling - pass alng methd End-t-end signalling - SCCP cnnectin riented End-t-end signalling - SCCP cnnectin less Generic number transfer Generic digit transfer Generic ntificatin prcedure Simple service activatin prcedure Remte peratins prcedures Netwrk specific prcedures Identificatin request/respnse prcedure Supplementary Services Data: Página 6 de 17 Versã: 1.2

7 Funcinalidade Implementada Nã implementada DDI MSN CLIP/CLIR COLP/COLR MCID Subaddressing Terminal Prtability Call Frwarding (CFU, CFB e CFNR) Call Deflectin Call Waiting Call Hld Cnference Calling Three Party Service CUG MLPP UUS1 (implicit) UUS1 (explicit) UUS2 UUS3 ECT CCBS FPH CCNR Data: Página 7 de 17 Versã: 1.2

8 ANEO 2 PICS Rec. ITU-T Q (06/97).- Anex A Aplicaçã à rede fixa da MEO A.4 PICS prfrma tables A.4.1 Glbal statement f cnfrmance (/N) Are all mandatry capabilities implemented? All references are t Recmmendatin Q.764 [4], unless explicitly stated therwise. A.4.2 Rles See Table A.1. Table A.1/Q Rles Item Is the implementatin an... Reference Status Supprt 1 OLE Originating Lcal Exchange NTE Natinal Transit Exchange OutIE Outging Internatinal Exchange IncIE Incming Internatinal Exchange ITE Internatinal Transit Exchange DLE Destinatin Lcal Exchange : It is mandatry t supprt at least ne f these items. A.4.3 Capabilities The fllwing matrix is an abbreviatin guide fr rles: OLE NTE OutIE ITE IncIE DLE TypeA TypeB TypeA TypeB TypeA TypeA Lcal Transit Gateway Transit Gateway Lcal Data: Página 8 de 17 Versã: 1.2

9 IntermE IntermE IntermE IntermE CntrlE CntrlE CntrlE IWrkE IWrkE IWrkE IWrkE Table A.2/Q Cnnectin types Item Is the exchange able t... Reference Status Supprt 1 supprt the cnnectin type "Speech"? supprt the cnnectin type "3.1 khz audi"? supprt the cnnectin type "64 kbit/s unrestricted"? supprt the cnnectin type "64 kbit/s unrestricted preferred"? supprt f multirate cnnectin types? N 6 supprt the cnnectin type "2 64 kbit/s unrestricted"? N 7 supprt the cnnectin type "384 kbit/s unrestricted"? N 8 supprt the cnnectin type "1536 kbit/s unrestricted"? N 9 supprt the cnnectin type "1920 kbit/s unrestricted"? N.2: It is mandatry t supprt at least ne f these items. Table A.3/Q Frward address signalling Item Is the exchange [rle] able t... Reference Status Supprt 1 [OLE] use the en blc peratin in the frward address signalling (sending)? 2 [OLE] use the verlap peratin in the frward address signalling (sending)? [IntermE] use the en blc peratin in the frward address signalling (receiving)? t m Data: Página 9 de 17 Versã: 1.2

10 Item Is the exchange [rle] able t... Reference Status Supprt 4 [IntermE] use the verlap peratin in the frward address signalling (receiving)? t m 5 [IntermE] use the en blc peratin in the frward address signalling (sending)? 6 [IntermE] use the verlap peratin in the frward address signalling (sending)? t t [DLE] use the en blc peratin in the frward address signalling (receiving)? 8 [DLE] use the verlap peratin in the frward address signalling (receiving)? m m.3:.4: It is mandatry t supprt at least ne f these items. It is mandatry t supprt at least ne f these items. Table A.4/Q OLE capabilities Item Is the exchange able t... Reference Status Supprt 1 send the end-f-pulsing signal (ST)? b) b) 2 thrugh-cnnect the transmissin path als in the frward directin immediately after sending IAM fr "Speech" r "3.1 khz audi" calls? d) d) N 3 thrugh-cnnect in the backward directin immediately after IAM in case f verlap signalling? 4 thrugh-cnnect in the backward directin when Called party number cmplete (digit analysis, timer T10, receive f ACM) in case f verlap signalling? 5 handle (generate and rute accrding t) the Transit netwrk selectin received frm the access? d) i).5 d) ii).5 N N.5: It is mandatry t supprt at least ne f these items. Table A.5/Q NTE capabilities Item Is the exchange able t... Reference Status Supprt 1 rute calls using nly the cnnectin type in the Transmissin medium requirement? a) a).6 Data: Página 10 de 17 Versã: 1.2

11 2 rute calls using nt nly the cnnectin type in the Transmissin medium requirement? a) a).6 N 3 rute calls by examining the Bearer capability in the User service infrmatin and/r the High layer capability in the User teleservice infrmatin? a) a) c51 N 4 supprt awaiting answer timer T9 if it is a cntrlling exchange (CntrlE)? : It is mandatry t supprt at least ne f these items. c51: IF A.5/2 THEN ELSE n/a. Table A.6/Q OutIE capabilities Item Is the exchange able t... Reference Status Supprt 1 rute calls using nly the cnnectin type in the Transmissin medium requirement? 2 rute calls using nt nly the cnnectin type in the Transmissin medium requirement? a) a) a) a).7.7 N 3 rute calls by examining the Bearer capability in the User service infrmatin and/r the High layer capability in the User teleservice infrmatin? a) a) c61 N 4 amend r mit the mst significant digits in the called party number (cuntry cde)? b) 5 send the end-f-pulsing signal (ST)? b) b) 6 supprt µ-law t A-law cnversin? b) b) n/a N.7: It is mandatry t supprt at least ne f these items. c61: IF A.6/2 THEN ELSE n/a. Table A.7/Q ITE capabilities Item Is the exchange able t... Reference Status Supprt 1 amend r mit the mst significant digits in the called party number (cuntry cde)? b) Table A.8/Q IncIE capabilities Item Is the exchange able t... Reference Status Supprt Data: Página 11 de 17 Versã: 1.2

12 1 supprt A-law t µ-law cnversin? b) b) n/a N Data: Página 12 de 17 Versã: 1.2

13 Table A.9/Q DLE capabilities Item Is the exchange able t... Reference Status Supprt 1 send a netwrk initiated Suspend n receipt f an n-hk cnditin? 2 send a netwrk initiated Resume n receipt f an ff-hk cnditin? c91 c91: IF A.0/1 THEN m ELSE n/a. Table A.10/Q IntermE capabilities Item Is the exchange able t... Reference Status Supprt 1 rute accrding t the Transit netwrk selectin? N 2 generate Call histry infrmatin if it is missing? c101 N c101: IF A.13/11 THEN ELSE n/a. Table A.11/Q IWrkE capabilities Item Is the exchange able t... Reference Status Supprt 1 send a netwrk initiated Suspend n receipt f a clear back signal? 2 send a netwrk initiated Resume n receipt f a reanswer indicatin? c111 c111: IF A.11/1 THEN m ELSE n/a. Table A.12/Q Gateway capabilities Item Is the exchange able t... Reference Status Supprt 1 perfrm plicing f infrmatin fr re-segmentatin? d) 2 re-segment withut discarding unrecgnized parameters that have t be passed n accrding t the cmpatibility prcedure? h) Table A.13/Q Rle independent capabilities Item Is the exchange able t... Reference Status Supprt Data: Página 13 de 17 Versã: 1.2

14 Item Is the exchange able t... Reference Status Supprt 1 supprt calls t testing and measuring devices (sending)? supprt calls t testing and measuring devices (receiving)? supprt the Cntinuity check prcedures? use Cntinuity-check request message t test fr prper CIC-alignment? Annex G.3 b) 5 d cntinuity checking fr multirate cnnectin type calls? N 6 supprt FOT? supprt the Simple segmentatin prcedure? supprt in-band tnes and annuncements? m 9 supprt Cause in the ACM and CPG? m 10 supprt signalling prcedures fr cnnectin type allwing fallback? 11 supprt the prpagatin delay determinatin prcedure? 12 supprt the simple (Q.767) ech cntrl prcedure? 2.5 N 2.6 c131 N D.2.8/Q supprt the dynamic ech cntrl prcedure? N 14 handle circuits n mre than ne PCM-system in ne CGB/CGBA and CGU/CGUA? 15 supprt methd 1 as preventive actin f dual seizure? 16 supprt methd 2 as preventive actin f dual seizure? 17 supprt a prprietary methd as preventive actin f dual seizure? 18 handle circuits n mre than ne PCM-system in ne GRS/GRA? N N supprt the cmpatibility prcedure? m 20 discard an unknwn parameter withut Parameter cmpatibility infrmatin? 21 pass n an unknwn parameter withut Parameter cmpatibility infrmatin? i) b) ii) b) i) b) ii) b).10 N.10 Data: Página 14 de 17 Versã: 1.2

15 Item Is the exchange able t... Reference Status Supprt 22 supprt f ISDN User Part signalling cngestin cntrl? supprt f autmatic cngestin cntrl? supprt the ISDN User Part availability cntrl? 2.13 N 25 supprt interactin with MTP Pause and Resume? 2.14 m c131: IF A.13/13 THEN m ELSE..8: It is mandatry t supprt at least ne f these items..9: It is mandatry t supprt at least ne f these items..10: It is mandatry t supprt at least ne f these items. A.4.4 Timers See Table A.14. Table A.14/Q Timers Item Use f... Reference Status Supprt Values in secnds allwed supprted 1 T1 Table A.1/Q.764 m T2 Table A.1/Q.764 m T3 Table A.1/Q T4 Table A.1/Q T5 Table A.1/Q.764 m T6 Table A.1/Q.764; 4.3.2/Q.118 m Nte 1 7 T7 Table A.1/Q.764 m T8 Table A.1/Q.764 m T9 Table A.1/Q.764; 4.3.1/Q.118 m Nte 1 10 T10 Table A.1/Q.764 m T11 Table A.1/Q.764 m Data: Página 15 de 17 Versã: 1.2

16 Item Use f... Reference Status Supprt Values in secnds allwed supprted 12 T12 Table A.1/Q.764 m T13 Table A.1/Q.764 m T14 Table A.1/Q.764 m T15 Table A.1/Q.764 m T16 Table A.1/Q.764 m T17 Table A.1/Q.764 m T18 Table A.1/Q.764 m T19 Table A.1/Q.764 m T20 Table A.1/Q.764 m T21 Table A.1/Q.764 m T22 Table A.1/Q.764 m T23 Table A.1/Q.764 m T24 Table A.1/Q.764 m 0-2 1,5 25 T25 Table A.1/Q.764 m T26 Table A.1/Q.764 m T27 Table A.1/Q.764 m T28 Table A.1/Q T29 Table A.1/Q ,6 30 T30 Table A.1/Q T31 Table A.1/Q.764 > T32 Table A.1/Q T33 Table A.1/Q N/A 34 T34 Table A.1/Q.764 c T35 Table A.1/Q.764 m T36 Table A.1/Q.764 m T37 Table A.1/Q.764 c N.A. Data: Página 16 de 17 Versã: 1.2

17 Item Use f... Reference Status Supprt Values in secnds allwed supprted 38 T38 Table A.1/Q.764; 4.3.2/Q T39 Table A.1/Q.764; 7.9/Q m c141: IF A.13/7 THEN m ELSE. c142: IF A.13/13 THEN m ELSE. Nte 1: This timer value is destinatin dependent Data: Página 17 de 17 Versã: 1.2