FEX route

[nanningmiss]

I have a FEX route as below:

TYPE RDB
CUST 00
ROUT 422
DES xxx/367-3344
TKTP FEX
NPID_TBL_NUM 0
SAT NO
RCLS EXT
VTRK NO
NODE
DTRK NO
ISDN YES
MODE NULL
IFC D100
SBN NO
PNI 00000
NCNA YES
NCRD NO
ISAR YES
RTN 450
SID 422
MIN 0
MAX 6
NCOS 1
IEC ???
CPUB OFF
DAPC NO
MBXR NO
PTYP ACO
AUTO NO
DNIS NO
DCDR NO
ICOG ICT
STEP
ACOD 82922
PII NO
AUXP NO
TARG 01
CLEN 1
BILN NO
OABS
IDC YES
DCNO 25 *
NDNO 25
DEXT NO
DNAM NO
ICIS YES
TIMR ICF 512
OGF 512
EOD 13952
DSI 34944
NRD 10112
DDL 70
OOD 3
ODT 4096
RGV 640
FLH 510
GRD 896
SFB 3
NBS 2048
NBL 4096

IENB 5
TFD 0
LEXT 100
SST 3 0
NEDC ETH
FEDC ORG
CPDC NO
SPCT IMM
HOLD 02 02 40
SEIZ 02 02
RGFL 02 02
RVSD 08 31
ILLR 02 02
DRNG NO
CDR NO
MUS YES
MRT 70
RACD NO
MANO NO
FRL 0 0
FRL 1 0
FRL 2 0
FRL 3 0
FRL 4 0
FRL 5 0
FRL 6 0
FRL 7 0
OHQ NO
OHQT 00
TTBL 0
ATAN NO
OHTD NO
PLEV 2
ALRM NO
ART 0
SGRP 0
ARDN NO
AACR NO

From DES, I know it is for xxx-367-3344. When I call this number, I can see the call comes in at a trunk of route 450. Below is the DCH message:

DCH 54 OMSG SETUP REF 00000044 CH 139 20 TOD 11:12:10
CALLING #:xxx2768400 NUM PLAN: E164/NATIONAL / NPA
CALLED #:xxx3673344 NUM PLAN: E164/NATIONAL / NPA

DCH 54 IMSG CALLPROC REF 00000044 CH 139 20 TOD 11:12:10

DCH 54 IMSG SETUP REF 0000E2E0 CH 138 15 TOD 11:12:10
CALLING #: NUM PLAN: E164/NATIONAL / NPA
CALLED #:2046 NUM PLAN: E164/SUBSCRIBER (NXX)/LOCL

Then at IDC table 25, I can see 2046 IDC to 83178, as below:

DCNO 25
IDGT CDGT
2046 83178


Everything looks fine, except I don't know how xxx-367-3344 becomes 2046. Did I missed anything? Or this change is done at CO?

If it is done at CO, how route 450 knows which SVRT to choose? Below is the print of RDB 450:

TYPE RDB
CUST 00
ROUT 450
DES BTN 514/367-3111
TKTP ISA
NPID_TBL_NUM 0
VTRK NO
NODE
DTRK YES
BRIP NO
DGTP PRI
ISDN YES
MODE PRA
IFC D100
SBN NO
PNI 00000
SVRT 409
420
421
422
423
424
425
426
427
428
429
430
431
432
433
435
436
437
438
439
440
NCRD YES
NSF YES
COTR 420
WATR
CHTY BCH
MBXR NO
DCDR NO
ICOG IAO
SRCH LIN
TRMB YES
ACOD 82950
TCPP NO
TARG
CLEN 1
BILN NO
OABS
ICIS NO
TIMR ICF 512
OGF 512
EOD 13952
NRD 10112
DDL 70
ODT 4096
RGV 640
GRD 896
SFB 3
NBS 2048
NBL 4096

IENB 5
DRNG NO


Would anyone please shed some lights on this? Thanks so much...

 

[trvlr1]

Look at the individual channels for this route, look at ATDN prompt to see if that reflects the number you are seeing.

 

[nanningmiss]

Thanks trvlr1.

Route 422 itself has no channel. It is the service route of route 450. And no ATDN.

REQ: ltm
CUST 0
ROUT 422

TYPE TLST
TKTP FEX
ROUT 422
DES xxx/367-3344

The part I don't know is how the call knows to choose route 422 rather than other service routes? And how xxx-367-3344 becomes 2046?