LICENSE-NV4K SBC, 300 CALL SKU: 1964SBCF300 Manufacturer: ADTRAN (0)No Reviews yet Call for availability Quantity -+ Details Adds SBC Feature Pack capability to the NetVanta 4660 and NetVanta 5660. Supports 300 calls. Details Back DetailsAdds SBC Feature Pack capability to the NetVanta 4660 and NetVanta 5660. Supports 300 calls. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review