12 -------------------------------------------------------------------- BELLCORE Information by The Mad Phone-man -------------------------------------------------------------------- So, You've broken into the big phone box on the wall, and are looking at a bunch of tags with numbers and letters on them. Which one is the modem line? Which one is the 1-800 WATTS line? Which one is the Alarm Line? Bell has a specific set of codes that enable you to identify what you're looking at. These are the same codes the installer gets from the wire center to enable him to setup the line, test it, and make sure it matches the customers order. Here are some extracts from the Bellcore book. First lets take a Hypothetical Line number I'm familiar with: 64FDDV 123456 ------------------------------------------------------------- The serial number format: Prefix + service code + modifier + serial number + digits: 1,2 3,4 5,6 7,8,9,10,11,12 continued ------------------------------------------------------------------------- Suffix + CO assigning circut number + segmet Come on... Ain't Got All Day!! digits: 13,14,15 16,17,18,19 20,21,22 ------------------------------------------------------------------------- The Important shit is in the 3d thru 6th digit. SERVICE CODES Intra or Inter LATA Block 1-26 ----------------- AA- Packet Analog Access line AB- Packet switch trunk AD- Attendant AF- Commercial audio fulltime AI- Automatic Identified outward dialing AL- Alternate services AM- Packet, off-network access line AN- Announcement service AO- International/overseas audio (full time) AP- Commercial audio (part time) AT- International/overseas audio (part time) AU- Autoscript BA- Protective alarm (CD) BL- Bell & Lights BS- Siren control CA- SSN Access CB- OCC Audio facilitys Come on... Ain't Got All Day!! CC- OCC Digital facility-medium speed CE- SSN Station Line CF- OCC Special facility CG- OCC Telegraph facility CH- OCC Digital facility High-speed CI- Concentrator Identifier trunk CJ- OCC Control facility CK- OCC Overseas connecting facility wide-band CL- Centrex CO line CM- OCC Video facility CN- SSN Network trunk CO- OCC Overseas connecting facility CP- Concentrator identifier signaling link CR- OCC Backup facility CS- Channel service CT- SSN Tie trunk CV- OCC Voice grade facility CW- OCC Wire pair facility CZ- OCC Access facility DA- Digital data off-net extention DB- HSSDS 1.5 mb/s access line DF- HSSDS 1.5 mb/s hub to hub DG- HSSDS 1.5 mb/s hub to earth station DH- Digital service Come on... Ain't Got All Day!! DI- Direct-in dial DJ- Digit trunk DK- Data Link DL- Dictation line DO- Direct-out dial DP- Digital data-2 4 kb/s DQ- Digital data-4 8 kb/s DR- Digital data-9.6 kb/s DW- Digital data-56 kb/s DY- Digital service (under 1 mb/s) EA- Switched acess EB- ENFIA II end office trunk EC- ENFIA II tandem trunk EE- Combined access EF- Entrance facility-voice grade EG- Type #2 Telegraph EL- Emergency reporting line EM- Emergency reporting center trunk EN- Exchange network acess facility EP- Entrance facility-program grade EQ- Equipment only-(network only) assignment ES- Extension service-voice grade ET- Entrance facility-telegraph grade EU- Extension service-telegrasph grade Come on... Ain't Got All Day!! EV- Enhanced Emergency reporting trunk EW- Off network MTS/WATS equivalent service FD- Private line-data FG- Group-supergroup spectrum FR- Fire dispatch FT- Foreign exchange trunk FW- Wideband channel FV- Voice grade facility FX- Foreign exchange HP- Non-DDS Digital data 2.4 kb/s HQ- Non-DDS Digital data 4.8 kb/s HR- Non-DDs Digital data 9.6 kb/s HW- Non-DDS Digital data 56 kb/s IT- Intertandem tie trunk LA- Local area data channel LL- Long distance terminal line LS- Local service LT- Long distance terminal trunk MA- Cellular access trunk 2-way MT- Wired music NA- CSACC Link (EPSCS) NC- CNCC link (EPSCS) ND- Network data line OI- Off premises intercommunication station line Come on... Ain't Got All Day!! ON- Off network access line OP- Off premises extension OS- Off premises PBX station line PA- Protective alarm (AC) PC- Switched digital-access line PG- paging PL- Private line-voice PM- Protective monitoring PR- Protective relaying-voice grade PS- MSC constructed spare facility PV- Protective relaying-telegraph grade PW- Protective relaying-signal grade PX- PBX station line PZ- MSC constructed circut QU- Packet asyncronous access line QS- Packet synchronous access line RA- Remote attendant RT- Radio landline SA- sattelite trunk SG- control/remote metering signal grade SL- secretarial line SM- sampling SN- Special access termination SQ- equipment only-customer premises Come on... Ain't Got All Day!! SS- dataphone select-a-station TA- Tandem tie-trunk TC- Control/remote metering-telegraph grade TF- Telephoto/facsimile TK- Local PBX trunk TL- Non-tandem tie trunk TR- turret or automatic call distributor (ACD) trunk TT- Teletypewriter channel TU- Turret or automatic call distributor (ACD) line TX- Dedicated facility VF- Commercial television (full time) VH- Commercial television (part time) VM- Control/remote metering-voice grade VO- International overseas television VR- Non-commercial Television (7003,7004) WC- Special 800 surface trunk WD- Special WATS trunk (OUT) WI- 800 surface trunk WO- WATS line (OUT) WS- WATS trunk (OUT) WX- 800 service line WY- WATS trunk (2-way) WZ- WATS line (2-way) ZA- Alarm circuts Come on... Ain't Got All Day!! ZC- Call and talk circuts ZE- Emergency patching circuts ZF- Order circuts, facility ZM- Measurement and recording circuts ZP- Test circut, Plant service center ZQ- Quality and management circuts ZS- Switching, control and transfer circuts ZT- Test circuts, central office ZV- Order circuts, service SERVICE CODES FOR LATA ACCESS --------------------------------------------------- HC- High capacity 1.544 mb/ps HD- High capacity 3.152 mb/ps HE- High capacity 6.312 mb/ps HF- High capacity 6.312 HG- High capacity 274.176 mb/s HS- High capacity subrate LB- Voice-non switched line LC- Voice-switched line LD- Voice Switched trunk LE- Voice and tone-radio landline LF- Data low-speed LG- Basic data Come on... Ain't Got All Day!! LH- Voice and data-PSN access trunk LJ- Voice and data SSN access LK- Voice and data-SSN-intermachine trunk LN- Data extension, voice grade data facility LP- Telephoto/facsimile LQ- Voice grade customized LR- Protection relay-voice grade LZ- dedicated facility MQ- Metalic customized NQ- Telegraph customized NT- Protection alarm-metalic NU- Protection alarm NV- Protective relaying/telegraph grade NW- Telegraph grade facility-75 baud NY- Telegraph grade facility- 150 baud PE- Program audio, 200-3500 hz PF- Program audio, 100-5000 hz PJ- Program audio, 50-8000 hz PK- Program audio, 50-15000 hz PQ- Program grade customized SB- Switched access-standard SD- Switched access-improved SE- Special access WATS-access-std SF- Special access- WATS access line improved Come on... Ain't Got All Day!! SJ- Limited switched access line TQ- Television grade customized TV- TV Channel one way 15khz audio TW- TV Channel one way 5khz audio WB- Wideband digital, 19.2 kb/s WE- Wideband digital, 50 kb/s WF- Wideband digital, 230.4 kb/s WH- Wideband digital, 56 kb/s WJ- Wideband analog, 60-108 khz WL- Wideband analog 312-552 khz WN- Wideband analog 10hz-20 khz WP- Wideband analog, 29-44 khz WR- Wideband analog 564-3064 khz XA- Dedicated digital, 2.4 kb/s XB- Dedicated digital, 4.8 kb/s XG- Dedicated digital, 9.6 kb/s XH- Dedecated digital 56. kb/s Now the last two positions of real importance, 5 & 6 translate thusly: Modifier Character Position 5 ------------------------------ Come on... Ain't Got All Day!! INTRASTARE INTERSTATE ------------------------------------- A B Alternate data & non data ------------------------------------- C Customer controlled Service ------------------------------------- D E Data ------------------------------------- N L Non-data operation ------------------------------------- P Only offered under intra Restructured private line (RPL) tariff ------------------------------------- S T Simultanious data & non-data ------------------------------------- F Interexchange Carriers is less than 50% ------------------------------------- G Interstate carrier is more than 50% usage =============================================================================== MODIFIER CHARACTER POSITION 6 -------------------------------------------------------------- Come on... Ain't Got All Day!! TYPE OF SERVICE Intra LATA -------------------------------------- ALL EXCEPT US GOVT US GOVERNMT -------------------------------------- T M Circut is BOC customer to BOC customer all facilitys are TELCO provided -------------------------------------- C P Circut is BOC/BOC and part of facilitys or equipment is telco provided -------------------------------------- A J Circut is BOC/BOC all electricaly connected equip is customer provided -------------------------------------- L F Circut terminates at Interexchange carrier customers location -------------------------------------- Z Offical company service -------------------------------------- Interlata S S Circut terminates at Interexchange carriers point of term (POT) -------------------------------------- V V Circut terminates at an interface of a Radio common carrier (RCC) Come on... Ain't Got All Day!! -------------------------------------- Z Official company service -------------------------------------- Corridor Y X Corridor circut -------------------------------------- International K H Circut has at least 2 terminations in different countries -------------------------------------- interexchange carrier Y X Transport circut between Interexchange carrier terminals. ---------------------------------------- So 64FDDV would be a private line data circut terminating at a radio common carrier. Other examples can be decoded likewise. Come on... Ain't Got All Day!! Enjoy this information as much as I've had finding it. -= The Mad Phone-man =- [12] Tfiles: (1-29,?,Q) :