problem with aim-voice-30 and vwci-2mft.g703

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Aug 15th, 2007
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i have a cisco 2620xm with an aim-voice-30 and a vwic-2mft-g703 and i want to use one port of the vwic to connect with the pbx (ds0-group 0) and the other port to a mpls link (channel-group 0)but when i try to configure the channel-group i get this:

MPLS_ROUTER(config-controller)#channel-group 0 timeslots 1-31

%The MFT-VWIC module is already connected to AIM slot,

cannot create Channel groups using onboard SCC.

Please reconfigure channel-group command with"aim #aim-slot" keyword

%Insufficient resources to create channel group

do i need to configure something else?

the ios version is c2600-js-mz.123-6b.bin


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paolo bevilacqua Thu, 08/16/2007 - 02:14
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You cannot use the second port of the VWIC for data when the first is used for voice in a 2600.

You will need to get a separate VWIC for the purpose. It doesn't need to be of the g703 variety that is more expensive.

Hope this help, please rate post if it does!

purohit_810 Thu, 08/16/2007 - 04:25
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It will support only one channel group. If you are going to create another channel group than you will get that error:

Note When NMSI mode is configured, the controller will support only one channel-group. If you try to configure more than one channel-group, the following error message will occur:


2 timeslots 3

%Channel-group already created.

%Only 1 channel-group can be configured

with independent clocking.

%Insufficient resources to create

channel group

When configuring between clock source independent and no clock source independent, the channel-group has to be removed.

See on URL:

Step:4 in E1 Unstructured configuration.


Dharmesh Purohit

paolo bevilacqua Thu, 08/16/2007 - 04:42
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That is incorrect. The question is about configuring a single channel-group on a VWIC that is also used for voice with AIM-VOICE30.

As I mentioned above, this is not supported.

erodrig Thu, 08/16/2007 - 09:29
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Hi Paolo

is there any document or link of cisco with this information?


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