COT Trunk Dial Tone Dection Problem 1

[JPostula]

I have a route that uses four commercial phone numbers for our 911 service. During routine checks I noticed one of the lines was out and it happened to be the line associated with the last trunk member. This is the one that is siezed first when placing a 911 call, but the call won't go through because the line is dead. Is there a way to have the switch check for dial tone before seizing the line and placing the call and automatically try the next trunk member?

I've included a print of the RDB and the TNB for one of the trunk members.

Thanks for your help.

REQ: prt
TYPE: rdb
CUST 0
ROUT 13

TYPE RDB
CUST 00
ROUT 13
DES E911
TKTP COT
NPID_TBL_NUM 0
PRIV NO
SAT NO
RCLS EXT
VTRK NO
NODE
DTRK NO
ISDN NO
PTYP ACO
AUTO YES
ICOG OGT
RANX NO
PREM NO
SRCH LIN
STEP
ACOD 5014
CPP NO
TARG
CLEN 1
OABS
TIMR ICF 384
OGF 384
EOD 2944
DSI 34944
NRD 10112
DDL 70
OOD 1
ODT 2816
RGV 640
FLH 510
GRD 896
SFB 3
CRD 0

IENB 5
TFD 0
LEXT 100
VGD 6
SST 3 0
NEDC ETH
FEDC ETH
CPDC NO
SPCT IMM
HOLD 02 02 40
SEIZ 02 02
RGFL 02 02
RVSD 08 31
ILLR 02 02
CDR YES
INC NO
LAST NO
QREC YES
OAL YES
AIA YES
OAN YES
OPD YES
CDRX NO
NATL YES
MUS NO
MR NO
MANO NO
EQAR 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
TDET NO
TTBL 0
ATAN NO
OHTD NO
PLEV 2
MCTS NO
ALRM NO
ART 0
SGRP 0
ARDN NO
AACR NO

REQ: prt
TYPE: tnb
TN 20 0 6 6
DATE
PAGE
DES

DES E911_4
TN 020 0 06 06
TYPE COT
CDEN 8D
CUST 0
XTRK XUT
TIMP 600
BIMP 3COM
TRK ANLG
NCOS 0
RTMB 13 4
ATDN 99333
SIGL LOP
SUPN NO
AST NO
IAPG 0
CLS UNR DTN WTA LPR APN THFD
P10 NTC
TKID
AACR NO
DATE 17 DEC 2008

 

[PERRYPJ]

Not as long as they are LOOP Start, if they were Ground start the switch would try another one and get you out. You can change your SRCH to RRB that way it will look at the next trunk the next time you make a call.

OLD ROLMEN WORKING ON NORTELS AND AVAYA

 

[JPostula]

Thank you. I'll change the route to RRB. The NTP says RBB will start with the next lower trunk than the one seized. Does the switch keep track of the last trunk seized on the route?

 

[PERRYPJ]

yes

OLD ROLMEN WORKING ON NORTELS AND AVAYA