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New Member

Cisco voice gateway with FXO card

Dears,

I have CUCM connected with Voice Gateway router.

I put a VIC-4FXO card to provide access to the PSTN and receive calls from the PSTN.

Now my problems are:-

1- When I receive a call from the PSTN the cisco phone still ringing (hangup) in spite of that the PSTN close the call.

2- When I try to call from cisco phone to the PSTN there is delay approximateley 10 - 12 seconds.

Apprecite your support,

Regards,

11 REPLIES
Green

Cisco voice gateway with FXO card

Ali,

You are facing a couple of issues

1) the fxo disconnect issue

http://www.cisco.com/c/en/us/support/docs/voice/analog-signaling-e-m-did-fxs-fxo/8120-fxo-disconnect.html

2) You seem to have a inter digit tme out misconfig with your dial peers etc.

May be you could explain your set up in more detail

Are you using H323, MGCP or SIP to talk between your CUCM and v/gway

Could you post your v/gway config

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
New Member

Cisco voice gateway with FXO card

My VG configured as MGCP you can find below the configuration:-

voice-card 0

dspfarm

dsp services dspfarm

!

!

!

!

!

!

!

!

license udi pid CISCO2901/K9 sn FCZ1801C252

hw-module pvdm 0/0

!

!

!

username ibs privilege 15 password 0 ibs

!

redundancy

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

interface Embedded-Service-Engine0/0

no ip address

shutdown

!

interface GigabitEthernet0/0

description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$

no ip address

duplex auto

speed auto

!

interface GigabitEthernet0/1

description Connected to LAN

ip address 10.10.4.8 255.255.255.0

duplex auto

speed auto

!

ip forward-protocol nd

!

ip http server

ip http access-class 23

ip http authentication local

ip http secure-server

ip http timeout-policy idle 60 life 86400 requests 10000

!

ip route 0.0.0.0 0.0.0.0 10.10.4.1

!

!

!

!

control-plane

!

!

voice-port 0/0/0

timing hookflash-out 50

timing guard-out 1000

caller-id enable

!

voice-port 0/0/1

timing hookflash-out 50

timing guard-out 1000

caller-id enable

!

voice-port 0/0/2

timing hookflash-out 50

timing guard-out 1000

caller-id enable

!

voice-port 0/0/3

timing hookflash-out 50

timing guard-out 1000

caller-id enable

!

!

!

!

ccm-manager mgcp

no ccm-manager fax protocol cisco

ccm-manager music-on-hold

ccm-manager config server 10.10.4.7

ccm-manager config

!

mgcp

mgcp call-agent 10.10.4.7 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

mgcp package-capability sst-package

mgcp package-capability pre-package

no mgcp package-capability res-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static

mgcp bind control source-interface GigabitEthernet0/1

mgcp bind media source-interface GigabitEthernet0/1

!

mgcp profile default

!

sccp local GigabitEthernet0/1

sccp ccm 10.10.4.7 identifier 1 version 7.0

sccp

!

sccp ccm group 1

associate ccm 1 priority 1

associate profile 1 register HW-CFB_HQ-1

!

dspfarm profile 1 conference

codec g729br8

codec g729r8

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 2

associate application SCCP

!

dial-peer voice 1 pots

service mgcpapp

port 0/0/0

!

dial-peer voice 999000 pots

service mgcpapp

port 0/0/0

!

dial-peer voice 999001 pots

service mgcpapp

port 0/0/1

!

dial-peer voice 999002 pots

service mgcpapp

port 0/0/2

!

dial-peer voice 999003 pots

service mgcpapp

port 0/0/3

!

Now to solve my first issue shall I configure the below on my voice ports??

(config)#voice-port x/x/x
FXO_Paper(config-voice)#supervisory disconnect signal
FXO_Paper(config-voice)#end
FXO_Paper#

So the phone stop ringing at one the other part close the call

Regards,

Silver

Cisco voice gateway with FXO card

You have to find specific disconnect tones for this to work on FXO...maybe you can try with this one (this is for Serbia BTW):

voice class dualtone-detect-params 1

freq-max-deviation 25

cadence-variation 25

!

voice class custom-cptone disconnecting

dualtone disconnect

  frequency 425

  cadence 500 500

voice-port 0/0/0

supervisory disconnect dualtone mid-call

supervisory custom-cptone disconnecting

HTH,

Dragan

HTH, Dragan
New Member

Cisco voice gateway with FXO card

Dragan,

I tried the above but still facing the same issue,

Please advise

New Member

Cisco voice gateway with FXO card

Hi Alex,

I posted my VGW config please advise,

Regards,

Re:Cisco voice gateway with FXO card

This may be a common disconnect issue. Need to create a Custom cp-tone. Is this site based in the middle east?

A PCM capture would help:

https://supportforums.cisco.com/docs/DOC-14060

Regards,
Kevin

Sent from Cisco Technical Support Android App

New Member

Re:Cisco voice gateway with FXO card

Yes in Middle east

I can't find any specific configuration for this issue??

Re: Cisco voice gateway with FXO card

Hi Ali

1- This is a famous problem , i hope to take a look for the below

A-  to get your frequency and cadence , use the below:-

http://www.3amsystems.com/World_Tone_Database

B-Try to use the below

http://ciscoflair.blogspot.com/2009/05/cisco-fxo-disconnect-issue.html

C-If you go to H323 , This will be the best choice.

Thanks

Please rate all useful information

New Member

Re: Cisco voice gateway with FXO card

PCM capture and send it to Cisco to get you the frequency and cadence

They have internal tool which can analyze the disconnect signal properly

Sent from Cisco Technical Support iPhone App

Re:Cisco voice gateway with FXO card

As Islam gave a external tool to decode the PCM capture.

Converting it to h.323 will solve half but not entirely of your problems.

Try capturing the PCM. Send it across.

Regards,
Kevin

Sent from Cisco Technical Support Android App

New Member

Re: Cisco voice gateway with FXO card

I sent you the PCM file,

Thanks

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