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.