Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Dual E1 vwic mft2e1

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.

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

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!

10 REPLIES
Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

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 ?

New Member

Re: Dual E1 vwic mft2e1

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.

Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

Hi,

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

Finally, relevant router config please ?

New Member

Re: Dual E1 vwic mft2e1

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.

Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

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!

New Member

Re: Dual E1 vwic mft2e1

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.

New Member

Re: Dual E1 vwic mft2e1

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??

Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

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!

New Member

Re: Dual E1 vwic mft2e1

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

Hall of Fame Super Gold

Re: Dual E1 vwic mft2e1

Glad that helped, thanks for the nice rating, and best luck!

218
Views
15
Helpful
10
Replies