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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- Metallic customized |
NQ- Telegraph customized |
NT- Protection alarm-metallic |
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 |
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- Dedicated digital 56. kb/s |
Now the last two positions of real importance, 5 & 6 translate thusly: |
Modifier Character Position 5 |
------------------------------ |
INTRASTATE 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 Simultaneous data & non-data |
------------------------------------- |
F Interexchange carriers is less than 50% |
------------------------------------- |
G Interstate carrier is more than 50% |
usage |
============================================================================== |
MODIFIER CHARACTER POSITION 6 |
-------------------------------------------------------------- |
TYPE OF SERVICE Intra LATA |
-------------------------------------- |
ALL EXCEPT US GOVT US GOVERNMENT |
-------------------------------------- |
T M Circuit is BOC customer to BOC customer |
all facilities are TELCO provided |
-------------------------------------- |
C P Circuit is BOC/BOC and part of |
facilities or equipment is telco |
provided |
-------------------------------------- |
A J Circuit is BOC/BOC all electrically |
connected equip is customer provided |
-------------------------------------- |
L F Circuit terminates at interexchange |
carrier customers location |
-------------------------------------- |
Z Official company service |
-------------------------------------- |
Interlata |
S S Circuit terminates at interexchange |
carriers point of term (POT) |
-------------------------------------- |
V V Circuit terminates at an interface of a |
radio common carrier (RCC) |
-------------------------------------- |
Z Official company service |
-------------------------------------- |
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