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Outbound Call issues on FXS Ports on h323 VG with IOS 15

Hi,

Are there any known restrictions with FXS ports with IOS 15 on voice gateways? I have a fax machine plugged into a fxs port on a 2901 router. When I make an inbound call, the call connects straight away to the fax. However, when I attempt to send a fax outbound , it fails. When I debug the dialpeer activity, I see the call failing to match an outbound dialpeer. My understanding is that the dialpeer 2 and 3 should match for outgoing. This is the case for other sites that i have configured on lower versions of IOS. I have tried using an analogue phone to rule out the fax machine also and the problem still remains. My config is below. Has anyone come accross this issue?

Thanks,
Derek

fax  ===> port 0/2/0

BRI ===> port 0/0/0 and 0/0/1

!

dial-peer voice 4 pots

tone ringback alert-no-PI

description *** Fax Machine ***

destination-pattern 8001

port 0/2/0

dial-peer voice 2 pots

tone ringback alert-no-PI

description *****  outbound PRI *****

preference 1

destination-pattern 0T

progress_ind setup enable 3

progress_ind alert enable 8

progress_ind progress enable 8

progress_ind connect enable 8

translate-outgoing calling 30

incoming called-number .

direct-inward-dial

port 0/0/0

!

dial-peer voice 3 pots

tone ringback alert-no-PI

description *****  outbound PRI *****

preference 2

destination-pattern 0T

progress_ind setup enable 3

progress_ind alert enable 8

progress_ind progress enable 8

progress_ind connect enable 8

translate-outgoing calling 30

incoming called-number .

direct-inward-dial

port 0/0/1

8 REPLIES 8
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Hall of Fame Master

Check with "debug isdn q931" if the number is dialed.

You also need network-clock-select to be on the PRI interface

Also, you don;t need the progress_ind commands, and a more exact destination-pattern would help

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its bri interfaces , not PRI. Its not dialing because the outbound dialpeer is not matched. it is not reaching an ISDN level yet, so debugging isdn q931 will not show anything

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Are you dialing 0?

With multiple PRIs, you can also use trunk groups, and a single dial-peer.

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it is not a PRI, it is a BRI and yes  I am dialling 0 and the number

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Ok,correction taken. Configure

no dial-peer outbound status-check

Again, best results are had with trunk groups and mattching destination-pattern.

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this command seems to be used in relation to the dial peer being down. This is not the case.. All dial peers are up. The problem, is when the outbound call comes in made from the fax machine or analogue phone, it does not match the an outbound dial peer... All other outbound calls work fine though the dial peers and inbound fax calls are fine too

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The command is absolutely necessary for BRI.

Please configure it and let us know the effects.

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This was an IOS bug. Once I upgraded to to 15.1, the problem disappeared

Sent from Cisco Technical Support iPad App

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