config to split a T1 for data and voice to a PBX

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I have a client that was using thier Merlin Magix PBX to handle the inbound T1. The CSU\DSU failed and they were unable to obtain a new card that could support it. I am installing a 2600 router with a 1MFT-T1 card and the original wic 1T serial card that connected to the PBX. I have the data connected and running fine on channels 1 -12 from the T1 on the controller card, but I am not sure how to configure the phone channels on 13-23 to use the wic 1T serial card to connect and talk to the PBX??


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So I can't use the serial card. I need either a dual port card can I use 2 1MFT cards? If I have the 2 ports I am guessing I setup each port for thier respective channels and one port will accept the incoming T1 and the other will go into the CSU/DSU port on the Phone switch? What do I need in the config so that it understands to send channels 13-23 from the T1 into the other MFT port?



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