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3640 Voice Gateway to Avaya PBX

We have NM-HDV-1T1-24 card in our 3640 router that we use as a gateway to the Avaya PBX via DS1 card (TN464F).

We are looking to add a second T-1 and maintain the ISDN features between the systems with a different DS1 card (TN767E).

Will the TN767E DS1 card support the same feature/functionality as the TN464F and/or what configuration will be required to accomplish this?

I have received conflicting info. regarding these two DS1 cards as to the ISDN features that they will support.


Re: 3640 Voice Gateway to Avaya PBX

If you don't get a suitable response to your post from another forum user you may wish to review our resources at the online You may also contact our product information line at 1-800-553-NETS or a Cisco Systems Engineer at your local Cisco office or reseller. To locate your local Cisco representative, visit

If anyone else in the forum has some experience with this issue, please reply to this thread.

Thank you for posting.

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