Dual E1 vwic mft2e1

Answered Question
Jun 5th, 2007

Hi

I have a 3745 router and I have just replaced my single VWIC E1 card with a dual VWIC E1 card. However I only have 30 lines working. Can someone please tell me how to get the second E1 PRI ISDN line to work? Many thanks in advance.

I have this problem too.
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Correct Answer by Paolo Bevilacqua about 9 years 6 months ago

No worries. You have:

dial-peer voice 104 pots

destination-pattern 0 <-- It should be really 0T, but if it works...

direct-inward-dial <-- Not needed for outgoing DP

port 3/0:15

You also need:

dial-peer voice 105 pots

destination-pattern 0T

port 3/1:15

This configuration uses multiple dual-peer and is not the more sophisticated trunk-group one. Its ok for your basic needs.

Note, under voice-port 3/0:15 you have some settings that you may want to replicate for 3/1:15 as well.

Note again, most of your dial-peer are redundant and could be eliminated/optimized.

Hope this helps, please rate post if it does!

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Overall Rating: 5 (4 ratings)
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Paolo Bevilacqua Tue, 06/05/2007 - 10:49

Do you use the PRI for voice? If so, do you have enough DSP resources to suppoer 60 channels ?

What is the exact error that you encounter ?

mintstreet Wed, 06/06/2007 - 01:17

Hi

The 2 PRI's are both used for voice. The VWIC is populated with all 5 DSP boards, so suffucient DSP's are available.

The problem I have is that the second PRI line is never used. Using "Show Voice DSP" or "Show Voice Call" I can see that only the first thirty lines are used for calls.

On the 31 concurrent call the softphone that I am using just says "Bad Number" or "Address Unknown": and there is no activity on the second PRI line.

I suspect it is an IOS setting which is not correct. I can swap the PRI lines in the router and always the first 30 work proving it is not a dodgy PRI line. I have two routers configured equally and the problem is on both of them ruling out a hardware fault.

Many thanks for your time.

Paolo Bevilacqua Wed, 06/06/2007 - 01:56

Hi,

are these incoming our outgoing calls? "Show controllers E1" and "show isdn status" please ?

Finally, relevant router config please ?

mintstreet Thu, 06/07/2007 - 02:52

Hi

It is the same for incoming or outgoing calls, only the first 30 lines are used.

Here are the config and status's as reported by the router. I have added it as an attachment.

I sure hope you can help. Many thanks.

Paolo Bevilacqua Thu, 06/07/2007 - 03:07

Hello,

For incoming, assuming both circuits are under the same hunt-group, telco has probably set things so that calls go fill the first circuit and then use the second. If you want a different behavior, ask them.

For outgoing, you do not have an outgoing dial-peer for the second interface. You can do that either creating a dial-peer, or putting both interfaces in a trunk-group, and referencing the latter in dial-peer.

Hope this helps,please rate post if it does!

mintstreet Thu, 06/07/2007 - 04:27

Hi

You say -

For outgoing, you do not have an outgoing dial-peer for the second interface.

How do you identify a dial peer with interfaces? Sorry, I know I must be missing something which is obvious to you but I can't see it. Many thanks in advance.

mintstreet Thu, 06/07/2007 - 04:29

Hi

I think this is it - I have been concentrating on the Dial-peer voip one only.

dial-peer voice 104 pots

destination-pattern 0

direct-inward-dial

port 3/0:15

I guess I need another one for port 3/1:15??

Correct Answer
Paolo Bevilacqua Thu, 06/07/2007 - 04:36

No worries. You have:

dial-peer voice 104 pots

destination-pattern 0 <-- It should be really 0T, but if it works...

direct-inward-dial <-- Not needed for outgoing DP

port 3/0:15

You also need:

dial-peer voice 105 pots

destination-pattern 0T

port 3/1:15

This configuration uses multiple dual-peer and is not the more sophisticated trunk-group one. Its ok for your basic needs.

Note, under voice-port 3/0:15 you have some settings that you may want to replicate for 3/1:15 as well.

Note again, most of your dial-peer are redundant and could be eliminated/optimized.

Hope this helps, please rate post if it does!

mintstreet Thu, 06/07/2007 - 05:19

p.bevilacqua

Many many thanks for your kind assistance.

Roger that on the replication of settings and now that I have a better, but still small, understanding of dial-peers, I will delete the gratuitous ones. Best regards - Steve

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