echo problem at cellphone, called through cs1000 PRI

[LittleMaster]

hello all.
we are using two types of systems for calling a cellphone network from our cs1000. one is a GSM gateway of quescom and other is a PRI ,which is linked with a cellphone network.
when a call is placed from any analog or digital extension to a cellphone,, the person on the cellphone heards an echo of his own voice while talking.
while there is no echo on the CS side.
the echo problem is both with both i.e gateway and on PRI.
one thing to remember GSM GATEWAY is used and direct PRI has different cellphone networks.

 

[LittleMaster]

?

 

[trvlr1]

Can you show us a print out of one or the other or both?

 

[bdmcdonald99]

Cell phones have marginal call quality at best thru the PSTN, so echo does not surprise me. If your calls are ALL OK to other numbers (Non- Cell) probably not the PBX. Maybe your PRI's levels are a little "hot", you would need to get the provider to check them.

It's a phone system, NOT a clock!

 

[LittleMaster]

BELOW PRINT IS OF DIRECT PRI WITH A CELLPHONE NETWORK..
********************************************************


REQ: PRT
TYPE: RDB
CUST 0
ROUT
ACOD 9936



TYPE RDB
CUST 00
ROUT 29
DES CELLPHONE NETWORK
TKTP COT
NPID_TBL_NUM 0
PRIV NO
RPA NO
SAT NO
RCLS EXT
VTRK NO
NODE
DTRK YES
BRIP NO
DGTP PRI2
ISDN YES
MODE PRA
IFC EURO
CNTY ETSI
SBN NO
PNI 00100
NCNA NO
NCRD NO
ISAR NO
IEC ???
CPFXS YES
SDID NO
DAPC NO
INTC NO
MBXR NO
MBXOT NPA
MBXT 0
DSEL VOD
PTYP DCO
CNDP UKWN
AUTO NO
DCDR NO
ICOG OGT
RANX NO
SRCH LIN
STEP
ACOD 9936
TCPP NO
TARG 03 04 05 06 07 08 09 10 11 12 13 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31
CLEN 1
OABS
OGIS YES
TIMR ICF 512
OGF 512
EOD 13952
NRD 10112
DDL 70
OOD 1
ODT 4096
RGV 640
FLH 510
GTO 896
GTI 896
ARP 3
SFB 3
CRD 512
NBS 2048


PAGE 002

NBL 4096

IENB 5
TFD 600
LEXT 100
VGD 6
DTD NO
SCDT NO
2 DT NO
DDO NO
CDR YES
INC YES
LAST YES
QREC YES
OAL YES
AIA YES
OAN YES
OPD NO
NDP EXC 0
CDRX NO
NATL YES
SSL
CFWR NO
IDOP NO
MUS YES
MRT 80
MR NO
PANS YES
EQAR NO
FRL 0 20
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
PLEV 2
OPR NO
MCTS NO
ALRM NO
ART 1
TIDY 7262 29
SGRP 0
ARDN NO
CTBL 0
ACF NO
AACR NO

*******************************

PRINT OF ROUTE FOR GSM GATEWAY
*******************************

REQ: PRT
TYPE: RDB
CUST 0
ROUT 40

TYPE RDB
CUST 00
ROUT 40
DES GSM GATEWAY
TKTP COT
NPID_TBL_NUM 0
PRIV NO
RPA NO
SAT NO
RCLS EXT
VTRK NO
NODE
DTRK YES
BRIP NO
DGTP PRI2
ISDN YES
MODE PRA
IFC E403
CNTY ETSI
SBN NO
PNI 00000
NCNA NO
NCRD NO
ISAR NO
IEC ???
CPFXS YES
SDID NO
DAPC NO
INTC NO
MBXR NO
MBXOT NPA
MBXT 0
DSEL VOD
PTYP DCO
CNDP UKWN
AUTO NO
DCDR NO
ICOG IAO
RANX NO
SRCH LIN
TRMB YES
STEP 29
ACOD 7512
TCPP NO
PII NO
AUXP NO
TARG 03 04 05 06 07 08 09 10 11 12 13 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29 30 31
CLEN 1
BILN NO
OABS
ICIS YES
OGIS YES
TIMR ICF 512
OGF 512
EOD 13952
NRD 10112
DDL 70
OOD 1
ODT 4096
RGV 640
FLH 510
GTO 896


PAGE 002

GTI 896
ARP 3
SFB 3
CRD 512
NBS 2048
NBL 4096

IENB 5
TFD 600
LEXT 100
VGD 6
DTD NO
SCDT NO
2 DT NO
DDO NO
DRNG NO
CDR YES
INC YES
LAST YES
QREC YES
OAL YES
AIA YES
OAN YES
OPD NO
NDP EXC 0
CDRX NO
NATL YES
SSL
CFWR NO
IDOP NO
MUS YES
MRT 80
MR NO
PANS YES
EQAR NO
FRL 0 20
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
PLEV 2
OPR NO
RCAL NO
MCTS NO
ALRM NO
ART 1
PECL NO
DCTI 0
TIDY 7512 40
SGRP 0
ARDN NO
CTBL 0
ACF NO
AACR NO

*****************************************

TN PRINT FOR THE CHANNEL OF FIRST ROUTE
*****************************************
PT0000
REQ: PRT
TYPE: TN
TYPE TNB
TN 86 1
SPWD
DATE
PAGE
DES

DES 03
TN 086 01
TYPE COT
CDEN SD
CUST 0
TRK PRI2
PDCA 1
PCML A
NCOS 0
RTMB 29 1
B-CHANNEL SIGNALING
NITE
AST NO
IAPG 0
CLS UNR DTN CND ECD WTA LPR APN THFD SPCD
P10 VNL
TKID 03
AACR NO
DATE NO DATE

******************************************
TN PRINT FOR CHANNEL OF GSM GATEWAY ROUTE
*****************************************

NACT
REQ: PRT
TYPE: TN
TYPE TNB
TN 73 1
SPWD
DATE
PAGE
DES

DES QUESO
TN 073 01
TYPE DID
CDEN SD
CUST 0
TRK PRI2
PDCA 1
PCML A
NCOS 0
RTMB 40 1
B-CHANNEL SIGNALING
NITE
AST NO
IAPG 0
CLS UNR DTN CND ECD WTA LPR APN THFD SPCD
P10 VNL
TKID
DTCR NO
AACR NO
DATE NO DATE


**************************************
LPTI PRINT FOR BOTH ROUTES
**************************************
>LD 73
DDB000
MEM AVAIL: (U/P): 45813844 USED U P: 5288124 510701 TOT: 51612669
DISK SPACE NEEDED: 681 KBYTES
REQ PRT
TYPE PRI2
FEAT LPTI
LOOP 86

MFF AFF
ACRC NO
ALRM REG
RAIE NO
G1OS YES
SLP 255 24 H 255 24 H
BPV 128 122
CRC 201 97
FAP 28 1
RATS 10
GP2 20 100 S 12 S 12 S 4 S
MNG1 15 S
NCG1 15 S
OSG1 15 S
MNG2 15 S
NCG2 15 S
OSG2 15 S
PERS 50
CLRS 50
OOSC 5
MEM AVAIL: (U/P): 45813844 USED U P: 5288124 510701 TOT: 51612669
DISK SPACE NEEDED: 681 KBYTES
REQ PRT
TYPE P
DTA107 34 CR
RI2
FEAT LPTI
LOOP 73

MFF CRC
ACRC NO
ALRM REG
RAIE NO
G1OS YES
SLP 255 24 H 255 24 H
BPV 128 122
CRC 201 97
FAP 28 1
RATS 10
GP2 20 100 S 12 S 12 S 4 S
MNG1 15 S
NCG1 15 S
OSG1 15 S
MNG2 15 S
NCG2 15 S
OSG2 15 S
PERS 50
CLRS 50
OOSC 5
MEM AVAIL: (U/P): 45813844 USED U P: 5288124 510701 TOT: 51612669
DISK SPACE NEEDED: 681 KBYTES
REQ ***
OVL000

*******************************
NET DATA PRINT
***************************

>LD 21
PT1000

REQ: PRT
TYPE: NET
TYPE NET_DATA
CUST 0

TYPE NET_DATA
CUST 00
OPT RTD
AC1 INTL NPA SPN NXX
AC2 LOC
FNP YES
ISDN YES
VPNI 0
PNI 100
PINX_DN
MBG 0
BSGC 65535
PFX1
PFX2
HLOC 90
LSC
RCNT 5
PSTN NO
TNDM 15
PCMC 15
SATD 1
OCLI ALL
MSCO_DP PRV
TIDM NO
DASC
ROPT NRO
DITI YES
TRNX YES
EXTT NO
FTOP FTTB
APAD 0 0
VNR NO
NIT 8
NAS_ATCL YES
NAS_ACTV YES
FOPT 14
CNDN
CNAT
CNIP YES
DMWM NO
MWNS NO
CNTC
NATC
INTC
ELC NO

 

[30n30w]

I notice on the CLS of these trunks that the Echo Cancellation is denied - have you tried ECA vs ECD?

CLS UNR DTN CND [highlight #FCE94F]ECD[/highlight] WTA LPR APN THFD SPCD
P10 VNL

Don't the PRI's have some echo cancelling circuity built in to the circuitry?

30n30w

 

[LittleMaster]

what is echo suppression equipment which is connected to the trunk?

 

[LittleMaster]

changing CLS to ECA gives this error..

SCH0345
CLASS OF SERVICE NOT ALLOWED.

one thing new is that the echo problem is faced when a cellphone is called from an ANALOG extension ,the digital one doesn't create any echo.