For those looking to model lump sum pensions, the Nov 2020 minimum present value interest rates have been released. You can find them online at https://www.irs.gov/retirement-plans/minimum-present-value-segment-rates and listed below
segment 1: 0.53
segment 2: 2.31
segment 3: 3.09
If you've been following them, these are lower rates (higher lump sum) than the numbers for the past 2 months.
Personally, I will be running (not walking) to get my pension as a lump sum as soon after Jan 1 as possible. Given that recently laid off people may expect to live 20, 30, or even 40 more years - what are the odds that AT&T still exists as a company to pay out an annuity that far down the road?
Your numbers may vary from mine based on age / years of service, etc..., but for me, the new rates represent an 11.2% increase over using the Nov-2019 (All 2020 lump sums) numbers.
Good luck!