receive fax lost words

[bo liu]

someone can help me , my fax machine receive fax from PSTN always lost words,but from intranet is OK, the machine is OK ,

fax machine ------ VG224 -----SCCP-----CUCM------ROUTER-------PSTN  this is my topology

i think the porblem is router , my fax protocol is cisco ( i attempt t38 also lost word)

who can tell me how to check this porblem........think very much ...and  i'm sorry... my english is very pool...

[bo liu]

!
!
!
isdn switch-type primary-net5
!
!
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
supplementary-service h450.12
fax protocol cisco
h323
  h245 caps mode restricted
modem passthrough nse codec g711alaw maximum-sessions 10000
sip
!
!
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
codec preference 3 g729r8
codec preference 4 g728
codec preference 5 ilbc
codec preference 6 g722-48
codec preference 7 g722-56
codec preference 8 g722-64
!
!
!
!
voice class h323 1
  h225 timeout tcp establish 3
  call start slow
!
!
!
!
!
!
!
!
!
!
!
voice translation-rule 1
rule 1
!
voice translation-rule 2
rule 1
!
!
voice translation-profile 1
translate calling 1
translate called 2
!
voice translation-profile 2
translate calling 1
translate called 2
!
!
voice-card 0
dspfarm
dsp services dspfarm
!
!
!
!
!

archive
log config
  hidekeys
!
!
!
!
!
controller E1 0/0/0
framing NO-CRC4
pri-group timeslots 1-31
!
controller E1 0/0/1
framing NO-CRC4
pri-group timeslots 1-31
!
!
!
!
!
interface GigabitEthernet0/0
ip address
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
fair-queue 64 256 0
no cdp enable
!
interface Serial0/0/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
fair-queue 64 256 0
no cdp enable
!
ip default-gateway
ip forward-protocol nd
ip route
no ip http server
ip http authentication local
no ip http secure-server
!
!
!
nls resp-timeout 1
cpd cr-id 1
!
!
!
!
!
!
control-plane
!
!
!
voice-port 0/0/0:15
cptone CN
!
voice-port 0/0/1:15
cptone CN
!
!
!
sccp local GigabitEthernet0/0
sccp ccm              identifier 1 version 7.0
sccp
!
sccp ccm group 1
associate ccm 1 priority 1
associate profile 1 register cfbdc7b94d9c600
!
dspfarm profile 1 conference 
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
maximum sessions 4
associate application SCCP
!
!
dial-peer voice 3 pots
translation-profile incoming 2
translation-profile outgoing 1
destination-pattern 9.T
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
incoming called-number .
fax rate disable
direct-inward-dial
port 0/0/0:15
!
dial-peer voice 1 voip
destination-pattern 5...
no modem passthrough
session target ipv4:
dtmf-relay rtp-nte h245-signal h245-alphanumeric
codec g711ulaw
no vad
!
dial-peer voice 4 pots
translation-profile incoming 2
translation-profile outgoing 1
destination-pattern 9.T
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
incoming called-number .
fax rate disable
direct-inward-dial
port 0/0/1:15

this is my router configure

[acampbell · Accepted solution]

Hi,

This type of FAX issue is usually related to
TDM clocking on the voice gateway router.

Can you try adding this to the config :-

!

network-clock-participate wic 0
network-clock-select 1 E1 0/0/0
network-clock-select 2 E1 0/0/1
!

HTH
Alex

Please rate useful posts

[bo liu]

thanks very much

now the fax is ok