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1841 VWIC MFT-T1 compatible w/ Voice T-1?

Had a 2801 go down for a customer w/ no immediate smartnet replacement.

trying to get a loaner 1841 up w/ a VWIC-1MFT-T1...they run 8 channels of voice to the telco...having a problem getting the voice card commands entered...

The product web site says:

The Cisco 1841 dramatically increase interface card slot WICs) and multiflex trunk cards (voice/WICs [VWICs]-for data only on the Cisco 1841 router).

Does this "for data only" part mean that I cannot connect to a Multi-flex trunk to run 8 channel of voice using the following IOS: c1841-adventerprisek9-mz.123-14.T7

I can?t get the VWIC commands to take:

Router(config-controller)#ds0-group 0 timeslots 1-8 type e&m-wink-start

%Configure network-clock-participate wic 0 first


?network-clock-participate wic 0? is not an option according to the IOS?????

help & thx.