Avaya Holdings Corp. provided preliminary revenue guidance for the first quarter ended December 31, 2017. For the quarter, the company’s GAAP revenue is expected to be in the range of $600 to $604 million for the Predecessor Period and $146 to $150 million for the Successor Period. Non-GAAP revenue is expected in the range of $769 to $779 million, a decline of approximately 1% to 2% sequentially, excluding the Networking business, and 4% to 5% lower than the first quarter of the prior fiscal year, excluding the Networking business.