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Beginner

FXS Missing Digits

Hi everybody,

we've got a CUCM 7.1.5 here with a 2901 router as a voice gateway that has a VIC3-4FXS/DID in it. The ports on the VIC are registered with the CUCM via SCCP using stcapp. The users at the attached phones have been experiencing the following problem for three months: When they are dialing a number, some digits aren't signalized to the system. We can verify that by debugging voice ccapi and voice application stcapp. This happens on random digits, primarily on other ones than the first one. The issue has shown up without any configuration change (as far as I know), and the same construct works fine in other locations. Is it maybe a hardware issue like a faulty VIC or DSP?

Thanks,

Peter

Here's the router's config:

stcapp ccm-group 1

stcapp

!

stcapp feature access-code

!

!

!

stcapp supplementary-services

port 0/3/0

  fallback-dn 787510

port 0/3/1

  fallback-dn 787511

port 0/3/2

  fallback-dn 787512

!

stcapp call-control mode feature

voice-card 0

dspfarm

dsp services dspfarm

!

!

!

voice service voip

fax protocol pass-through g711ulaw

modem passthrough nse codec g711ulaw redundancy

voice-port 0/3/0

cptone DE

timeouts ringing infinity

caller-id enable

!

voice-port 0/3/1

cptone DE

timeouts ringing infinity

caller-id enable

!

voice-port 0/3/2

cptone DE

timeouts ringing infinity

caller-id enable

!

voice-port 0/3/3

cptone DE

timeouts ringing infinity

caller-id enable

sccp local Loopback1

sccp ccm (replaced) identifier 2 priority 2 version 7.0 

sccp ccm (replaced) identifier 1 priority 1 version 7.0 

sccp

!

sccp ccm group 1

bind interface Loopback1

associate ccm 2 priority 1

associate ccm 1 priority 2

associate profile 2 register RSVP-11-GW229

associate profile 1 register RSVP-29-GW229

!

dspfarm profile 1 mtp  

codec pass-through

codec g729ar8

rsvp

maximum sessions software 100

associate application SCCP

!

dspfarm profile 2 mtp  

codec g711ulaw

codec pass-through

rsvp

maximum sessions software 50

associate application SCCP

!

dial-peer voice 30 pots

service stcapp

port 0/3/0

!

dial-peer voice 31 pots

service stcapp

port 0/3/1

!

dial-peer voice 32 pots

service stcapp

port 0/3/2

!

dial-peer voice 33 pots

service stcapp

port 0/3/3

2 REPLIES 2
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Hall of Fame Master

What is the IOS version?

Chris

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Hi Chris,

it's 15.1(1)T.

Thanks,

Peter

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