Lucent Technologies Ds1/Cept1/Isdn Pri Reference Manual

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-67 G2.2 Administration 
6
Procedure 014 Word 1: BCCOS Routing Options
This p roc ed ure is req uired  to ad minister the attrib utes of eac h BCCOS 
assignment. Generic 2 permits up to a maximum of 256 different numeric 
assig nments. The switc h software is sup p lied with numbers (0 through 8) alread y 
d efined . Eac h numb er (0 throug h 8) has different d efault p arameters. Therefore, 
eac h numb er is uniq ue and may b e ap p lied  to a d ifferent typ e of routing  
c onfig uration. It is c urrently b elieved  that these numb ers may b e ap p lied  to meet 
the need s of most routing  c onfigurations.
If it is d etermined  that the existing  BCCOS numb ers d o not meet the need s of a 
p artic ular routing c onfig uration, then new numb ers may b e d efined . New 
numb ers should  b eg in with 255 and  c ontinue in d esc end ing  ord er.
The d ifferenc es b etween System 85 R2V4 and Generic  2 are:
1. With System 85 R2V4, BC and  ISDN routing  are ad ministered  in 
p roc ed ure 010, word  4; b ut, with Generic  2 these are moved  to p roc ed ure 
014, word  1.
2. With System 85 R2V4, the switc h assumes that all user d ata/information 
will b e p resented  for transmission in a form c alled  Restric ted . Restric ted  
means that the d ata/information is enc od ed  so that the all-zeroes oc tet will 
not oc c ur. The DCP d ata mod ules enc ode user d ata into the form 
Res tr ic ted .
With Generic  2, the switc h ad ministration software (p roc edure 014 word 1, 
field  3) assig ns whether user d ata/information is p resented  to the switc h 
as Restric ted  or Unrestric ted . Unrestric ted  means that the d ata may 
c ontain the all-zeroes oc tet.
3. With System 85 R2V4, the AVD b it shows when a mod em p ool is req uired . 
With Generic  2, the BCCOS with AAR and  ARS shows whether a mod em 
pool is required.
Field 1
Translates new (ad d itional) BCCOS numb ers. Field  enc od es and  their 
descriptions are:
Dash (–) is used when the BCCOS does not support new numbers
Numb ers b etween (0 and  255) 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-68 G2.2 Administration 
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Field 2
Assig ns the transp ort mod e.
Field encodes and their descriptions are:
Field 3
Sp ec ifies whether the end p oint is unrestric ted  (1
) or restric ted  (0
) with resp ec t to 
incoming calls.
It is the AAR/ARS software that routes c alls. This software will b loc k c alls from an 
unrestric ted  typ e to a restric ted  typ e. As a c ontrast, the software will route c alls 
from a restric ted  typ e to an unrestric ted  typ e. Furthermore, the software will route 
c alls from restric ted  to restric ted , dep end ing  on other attributes of the two 
BCCOS enc od es.
Fields 4-13
The translation p arameters ad ministered  for field s 4 through 13 d etermine what 
ac tions the switc h will take for the BCCOS sp ec ified  in field  1. Reg ard ing  Generic  
2, it is imp ortant to rememb er that the ad ministration (of the BCCOS) d etermines 
when a mod em p ool memb er is ad d ed  and  not the p artic ular trunk type. By 
ad ministering  the BCCOS on an AAR/ARS p referenc e b asis allows a sing le trunk 
group to support both circuit switched and modem pooled calls. Field encodes 
and their descriptions are:
Field s 14 throug h 16 are the d efault c ap ab ilities assumed  b y the switc h for an 
orig inating  fac ility (on this switc h) that d oes not have a BCCOS IE (non-ISDN). 
The switc h assumes these d efault c ap abilities are ac c ep tab le to the orig inating  
fac ility when it tries to c onnec t the orig inating  fac ility to the terminating  fac ility. 
These d efault c ap ab ilities are not the p red efined  BCCOSs that d efault throug h 
administration.
Field 14
Assig ns a p ac ket switc hed  (1
) or a circuit switched (0
) c all transp ort mod e 0
Circ uit switc h the c all
1
Packet switch the call
3
Both c irc uit and  p ac ket
0
Circ uit switc h the c all
1
Insert a mode 2 modem pool
3
Bloc k the c all 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-69 G2.2 Administration 
6
Field 15
Assig ns a c lear (1
) or a restric ted  (0
) c hannel typ e. This relates to c alls outgoing 
from an end p oint, exc ep t for DMI mod es 0 or 3.
Field 16
The d efault BC c lass (BCC). Used  for an outg oing  c all BC IE (exc ep t for BRI 
modes
).
Procedure 014 Word 2: BCCOS Data Options
This p roc ed ure is used  to d efine the d ata c ap ab ilities for the mod em p ools. The 
d ata rates selec ted  are d ep end ent on loc al requirements and  the p artic ular type 
of analog  mod em used .
Field 1
Translates BCCOS mod em p ool sup p ort. Field  enc od es and their d esc rip tions 
are:
Dash (–) is used  when the BCCOS does not sup p ort mod em p ools
Numb ers b etween (0 and  255)
Fields 2-10
These field s selec t the d ata rates (64000, 56000, 19200, 9600, 4800, 2400, 1200, 
300, or low speed) supported by this modem pool. Field encodes and their 
descriptions are:0
Vo i c e
1
Mod e 1
2
Mod e 2
3
Mod e 3
4
Mod e 0
5
Voic e g rad e d ata
6
Unknown digital
7
Unknown analog
8
Mod e 3/2
9
X. 2 5
0
Not supported
1
Supported 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-70 G2.2 Administration 
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Field 11
Defines if sync hronization is (1
) or is not (0
) supported.
Field 12
Defines if half (1
) or full (0
) duplex operation is supported.
Field 13
Defines if an external (1
) or an internal (0
) c loc k sourc e is used .
Field 14
Whenever a mod em p ool sup p orts more than one d ata rate it is g enerally 
d esirab le to assig n one d ata rate as a d efault or first c hoic e. Field  enc od es and  
their desc rip tions are numb ers (1 throug h 9; whic h c orresp ond  to Low, 
300,...64000-b p s resp ec tively).
Procedure 010 Word 4: Line Side (B-Channel)
ISDN Routing Options
Field 1
When ISDN is ad ministered, eac h COS assig nment must have an assoc iated  BC 
and  ISDN routing  assig nment. That is to say that whenever ISDN is enab led , all 
COS assignments must also be translated for procedure 010, word 4. COS 
assig nments must b e within the 2-d ig it rang e of 1 throug h 63.
Field 2
This field s enc od es are only useful for AUTOVON ap p lic ations. Dash (–) is 
ap prop riate for ISDN ap p lic ations.
Field 3
This field  shows the ISDN-PRI routing op tion. Field  enc od es and  their 
descriptions are:
0
Any typ e of trunking  fac ility is OK. The 0 op tion should be used  when 
there are no spec ific  req uirements for ISDN-PRI trunks. Generally, this 
will inc lud e all voic e and  voic e-g rad e d ata ap p lic ations (BC c od e =  0) 
exc ep t those where user-to-user information transfer is d esired  (for 
examp le, SID/d isp lay). 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-71 G2.2 Administration 
6
Procedure 100 Word 1: Trunk Group Type
Signaling and Dial Access (ID) Code
Translating  word  1 is the first step  in estab lishing  trunk g roup s. Those trunk 
groups established for ISDN applications may be of the same design as those for 
non-ISDN ap p lic ations, exc ep t for the typ e of sig naling  used . Or, they may 
(op tionally) b e d esig ned to take maximum ad vantag e of the ISDN c ap ab ilities 
(suc h as with the Integ rated  Telemarketing  Gateway or ITG).
Field 1
Assig ns a trunk g roup  numb er. Permitted  entries inc lude any not alread y used  
numb er within the rang e of 18 throug h 999.
Field 2
Assig ns the first dig it of the trunk ac c ess c od e. Permitted  entries are 0 throug h 9 
for d ig its 0 throug h 9 and  with 11 and  12 for the symb ols * and  #, resp ec tively.
Field 3
Assig ns the sec ond dig it of the trunk ac c ess c od e. Permitted  entries inc lud e 
d ig its 0 throug h 9.
Field 4
Assig ns the third  d ig it of the trunk ac c ess c od e. Permitted  entries inc lud e d ig its 0 
throug h 9.
Field 5
Assig ns the fourth d ig it of the trunk ac d c ess c od e. Permitted  entries inc lud e 
d ig its 0 throug h 9.1
ISDN-PRI trunking  fac ilities are req uired . Generally, these ap p lic ations 
inc lud e those COS g roup s established  for Mod e 1 d ata (BC c od e =  1), 
Mode 3 data (BC code = 3), and Mode 0 data (BC code = 4).
Mod e 0 d ata, d ep end ing on its orig in, may req uire a restric ted  
c hannel. Rec all that an unrestric ted  c hannel is only provid ed  b y those 
ISDN-PRI fac ilities that use the B8ZS line-c od ing  format.
2
Any trunking  fac ility will work b ut ISDN-PRI trunk fac ilities are 
preferred. This may include voice and voice-grade data (BC code = 0) 
and Mode 2 data (BC code = 2). 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-72 G2.2 Administration 
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Field 6
Defines the trunk typ e of a sp ec ific  trunk g roup . The ISDN-PRI fac ilities may b e 
used  to sup p ort several d ifferent trunk typ es. These may inc lud e b oth 
c onventional trunk typ es as well as the ISDN-d ynamic  trunk typ e. An imp ortant 
p oint to rememb er is that the p artic ular servic e app lic ation and  the inc oming 
d ig its are the p rimary d etermining  fac tors that c ontrol whic h trunk typ e is 
selec ted . Most servic e ap plic ations may be sup p orted  (over ISDN fac ilities) b y 
either a c onventional trunk typ e or ISDN-d ynamic . Ta b l e  6 - 5
 shows some 
p ermitted  field  entries that sup p ort sig naling typ e 20.
Trunk typ es not inc lud ed  in the c ateg ories listed  in Ta b l e  6 - 5
 below may not be 
translated  for ISDN-PRI servic e. Most c onventional trunk typ es spec ify, as a part 
of their name, an in/out sig naling sequenc e. Ac tually, these sig naling  seq uenc es 
are disabled and type 20 signaling is used exclusively over ISDN facilities.
Trunk typ es p rec ed ed  with an asterisk (*) may b e selec ted  b y trunk typ e 120 on 
an as need ed  CBC Servic e Selec tion b asis.
For ISDN trunk g roup s as well as other typ es of trunk group s, the entered  type 
d efines feature op eration for the trunk g roup . For examp le, if a trunk g roup is 
assig ned  the typ e of 19, inc oming  c alls over this trunk g roup  are routed  to the 
attendant c onsole. On DID trunk typ e g roup s, the switc h exp ec ts station numb er 
d ig its on all inc oming  trunks; on tie trunk typ e g roup s the switc h c an hand le 
either station numb er d ig its or network numb ers.
Table 6-5. Trunks Supporting Signaling Type 20
Trunk Description Trunk Type
2-way CCSA/APLT12—15
CO 16, *17 (Note), 18—20
Data 100—107
DID *30, *31
DMI *108, *109
FX 21—25
ISDN 120
M/S TIE 70—78
Sp ec ial 2, 5, 6, 50—58, 62, 65—67, 90—93
TIE 32—40, *41, *42, *43, 44, 45, *46, *47
WATS 26, *27, 28 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-73 G2.2 Administration 
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Field 7
Assig ns the d ial ac c ess c od e restric tion.
Field encodes and their descriptions are:
Field 8
Assig ns the trunk g roup  as a Multifunc tion Terminal CO line app earanc e. This is 
not app lic ab le to ISDN so assig n enc od e 0
 here.
Field 9
Assig ns the typ e of network ac c ess for the trunk g roup . Enc od es are:
Field 10
Disp lays and  verify that the typ e of trunk sig naling is c orrec t. ISDN uses 
messag e-oriented  sig naling . Therefore, enc od e 20 should  b e d isp layed .
Procedure 100 Word 2: Trunk Group 
Data Translations
This word  is used to administer d ata c harac teristic s for eac h trunk g roup  
(includ ing  BCCOS).
Field 1
Sp ec ifies a p artic ular trunk g roup . The field  enc od e will b e the same as 
p reviously translated  in p roc ed ure 100, word  1.0
Allows ac c ess to the trunk g roup  via a d ial ac c ess c ode.
1
Restric ts and  only allows ac c ess to the trunk group  for trunk testing  
and  for p rovid ing  unattend ed  c onsole servic e.
0
Allows ac c ess to the p ub lic  network
1
Allows ac c ess to p rivate network fac ilities 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-74 G2.2 Administration 
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Field 2
Assig ns a BCCOS to the trunk g roup . This field  is used for non-ISDN to ISDN 
tand em c onnec tions. The p ermitted  rang e of enc odes is (0 throug h 255). Field  
enc odes and  their d esc rip tions are:
All calls use the BCCOS assigned to preferenc es in routing patterns as 
ad ministered  in p roc ed ures 309 word  1 and  321 word  5. If not assig ned  to 
p referenc es, the p referenc e will d efault to the BCCOS of the assoc iated  trunk 
group.
Procedure 100 Word 3: ISDN Trunk Group
Signaling Options
The trunk type and sig naling typ e attributes are translated  as ind ivid ual 
p arameters.
Field 1
Sp ec ifies a trunk g roup. Permitted  entries inc lud e any not alread y used  numb er 
within the rang e of 18 to 999.
Field 2
Sp ec ifies the sig naling  typ e for the trunk g roup . For ISDN, use sig naling  typ e 20.0
Vo i c e
1
Mod e 2 Data
2
Vo i c e
3
Unknown Digital
4
Unknown Analog
5
Voic e Grad e Data
6
Mode 0 data
7
Mode 1 data
8
Mode 3 data
9
X.25 Pac ket Switched on B-channel 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-75 G2.2 Administration 
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Field 3
For all ISDN trunking  ap p lic ations exc ep t DCS, g lare is resolved  b y the ISDN 
p rotoc ol. Therefore, this field  is ignored for ISDN ap p lic ations.
Sp ec ific ally, ISDN neg otiates the losing  c all to a d ifferent c hannel if the orig inal 
c hannel is p referred . Exc lusive c alls (suc h as DCS) are not neg otiated  and  the 
user hears the reord er tone. In either c ase, the network has p riority over the user 
when both c alls are p referred  or exc lusive. This c ap ab ility is ad ministered  in field  
5 of p roc ed ure 262, word  1.
Field 4
Retry p ermits multiple attemp ts to seize a b usy trunk from the sp ec ified  trunk 
group.
This field  is p rimarily ap plic ab le for those trunk g roup s routed  over analog  
fac ilities and  uses trunk typ es 41, 42, 43, 46, or 47. Dep end ing  on the p artic ular 
c onfig uration, retry may or may not be ap p lic ab le for ISDN ap plic ations. Field  
enc odes and  their d esc rip tions are:
Field 5
Not ap p lic ab le for ISDN ap p lic ations (enc od e must b e 0 for not ac tive).
Field 6
Not ap p lic ab le for ISDN ap p lic ations (enc od e must b e 0 for not ac tive).
Field 7
Not ap p lic ab le for ISDN ap p lic ations (enc od e must b e 0 for no failure threshold ).
This field  is only ap p lic ab le for analog trunk fac ilities. It permits the user to 
estab lish a trunk failure threshold  that, when exc eed ed , will g enerate an alarm. 
The threshold  limit will affec t servic e availab ility and , on an ind irec t b asis, the 
c ustomers maintenance c osts.0
Multip le retry is not d esired , that is retry not ac tive. The ISDN-PRI 
p rotoc ol c ontains an automatic  retry c apab ility. Whenever trunk typ e 
120 is selec ted , the zero (0
) encode is required.
1
Rec ommend ed  for ISDN ap plic ations where the 40-series of trunk 
typ es is used . This enc od e enab les a d oub le try sing le retry and thus 
p rovid es slightly imp roved  call c omp letion, particularly for larg e trunk 
groups that span across more than one transmission facility. 
						

							DEFINITY Communications System Generic 2.2 and Generic 3 V2 
DS1/CEPT1/ISDN PRI Reference  
555-025-107  Issue 1
July 1993
System Administration 
Page 6-76 G2.2 Administration 
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Field 8
Permits user c ontrol of whether op tional ISDN IEs are transmitted  and  whether 
ac c ess to other ISDN network features is d esired .
The op tional ISDN IEs inc lud e the following :
nCalling numb er d isp lay
n*Connec ted  p arty numb er
n*User-to-user information
n*Called party name
n*Calling  p arty name
n*Data mode 3 p arameters
n*Traveling  class marks
Items p rec ed ed  with an asterisk (*) are only transmitted  on an end -to-end  b asis 
whenever all p ub lic  network links are p rovid ed  with CCITT interoffic e 
c ommunic ation.
Field encodes and their descriptions are:
Field 9
Sp ec ifies the network servic e that is req uested  for trunk verific ation b y station 
( TVS) .  Ta b l e  6 - 6
 shows p ermitted  field entries that sup p ort signaling  typ e 20. -
(Dash) only ap p lic ab le whenever ISDN is not availab le.
0
Rec ommend ed  for all ISDN c onfig urations, b oth p ub lic  and  p rivate 
network arrang ements.
1
Do not transmit the op tional ISDN IEs.
2
When set to 2
, the op tional IEs are sent, but if the trunk g roup  is a DCS 
trunk g roup  on an ISDN fac ility and  an ISDN c all from another trunk 
g roup  is routed  to it, the DCS name messag e is sup pressed.
Table 6-6. Trunks Supporting Signaling Type 20
Trunk Description Trunk Type
CO 16, *17 (Note 1), 18, 19, 20
Data100 —107
DID *30, *31
DMI (Note 2) *108, *109
FX 21  — 2 5