Last updated: October 2026
Ask three people what an Avaya decision will cost and you will get three answers, because each one is looking at a different line on the budget. The maintenance renewal, the subscription quote and the migration estimate all tell part of the story. Total cost of ownership puts them on one page over a realistic time frame, which is the only fair way to compare options.
This guide shows how TCO works for each Avaya path, where hidden costs tend to appear and how to build a five-year model your finance team will trust.
- Staying on Aura or Elite has the lowest cost this year and the steepest rise later.
- Avaya Infinity shifts spend from hardware to subscription, mainly through Upgrade Advantage.
- Switching vendors adds a one-time migration cost, which is the biggest variable in the whole model.
- The months you keep paying for Avaya during a long migration are a real cost, so delivery speed matters.
What is Avaya total cost of ownership?
Avaya total cost of ownership is the full cost of running your contact center on a given path over several years. It includes licensing or subscription fees, maintenance, hardware, hosting, professional services, migration costs, internal staff time and the cost of running two systems in parallel during any transition.
Path 1: Stay on Aura or Elite
Staying looks cheapest because there is no project. The costs are real but spread out. Maintenance renewals have tended to rise since Avaya's 2023 restructuring. Specialist engineering time costs more each year as the talent pool shrinks. Hardware refreshes and release upgrades still need funding. There is also an opportunity cost, because every call an agent handles that a modern self-service flow could have resolved is more expensive. Aumne's own analysis puts live agent calls at 6 to 12 US dollars each against 0.25 to 0.50 for an AI-resolved interaction.
Pros
- No capital project or migration cost.
- Predictable short-term budget.
Cons
- Rising maintenance and engineering costs over time.
- Limited ability to lower cost per contact through automation.
Path 2: Move to Avaya Infinity
Infinity is usually bought as a subscription. For Aura and Elite customers the common vehicle is Upgrade Advantage, which bundles access to current Aura, Elite and Infinity software. Costs move from periodic capital refreshes to recurring fees. In a hybrid model you still carry maintenance on the voice infrastructure that stays on site, which is easy to forget in a first estimate.
Pros
- Smoother, more predictable spend.
- Modern capabilities without a full replacement project.
Cons
- Two cost lines during a long hybrid period.
- Add-on modules, training and partner services can grow the total.
Path 3: Switch to a cloud contact center
Switching creates two separate numbers. Ongoing platform licensing ranges from usage-based billing on Amazon Connect to roughly 75 US dollars per agent per month for Genesys Cloud CX and around 110 to 159 for NICE CXone and Five9, based on published pricing collected by Prospeo in 2026. The one-time migration cost is the bigger swing. Manual integrator-led rebuilds commonly land in the low to mid six figures, with traditional Avaya migrations often quoted at 200,000 to 500,000 US dollars. Aumne ACT migrations start at a fixed fee of 25,000 US dollars.
Pros
- No hardware or on-site maintenance.
- Lower cost per contact as self-service improves.
- Pricing that can follow traffic up and down.
Cons
- One-time migration cost and parallel running period.
- Per-seat licences can exceed old maintenance costs if seats are not managed.
A simple five-year TCO model
| Cost line | Stay on Aura or Elite | Avaya Infinity | Switch to cloud |
|---|---|---|---|
| Licensing or subscription | Maintenance renewals | Subscription such as Upgrade Advantage | Per seat or usage-based |
| Hardware and hosting | Refreshes on site | Partly on site in hybrid | Included in platform |
| One-time project | None | Partner services | Migration fee |
| Internal staff | Specialist engineers | Mixed skills | Cloud administrators |
| Parallel running | None | Long hybrid period | Short with fast migration |
| Cost per contact trend | Flat or rising | Improving | Improving fastest |
Fill the table with your own figures, then add one more line most models miss: the cost of continuing to pay for Avaya while a migration runs. A 12-month manual project means 12 extra months of maintenance plus project fees. A 45-day migration shrinks that line dramatically.
From the field From our delivery work: on one SI-delivered telecom migration, containment rose from 22 percent to 65 percent after the move, producing a three times first-year return. Cost per contact, not licence price, drove that result.
Questions that keep a TCO model honest
- What exactly is included in each subscription or licence, and what is sold separately?
- How are seats counted for supervisors, part-time and seasonal staff?
- Which costs continue during a hybrid or parallel period?
- What does each path assume about self-service containment?
Call to action
Use the Aumne ROI calculator for a quick estimate, then book a free assessment for a fixed-fee migration quote based on your real estate.
Frequently asked questions
It depends on your size, volume and how long you plan ahead. Staying is cheapest in year one, while switching often costs least over five years once automation lowers cost per contact.
Avaya is competitive when you reuse existing infrastructure through Infinity, but hybrid estates carry two cost lines and AI options can cost more than on open cloud platforms.
Yes. Every month spent migrating is a month of paying for both systems plus project fees, so a faster migration directly lowers TCO.
Licensing, maintenance, hardware, migration, staff, parallel running and the trend in cost per contact over at least five years.
Conclusion
A fair Avaya TCO comparison looks beyond the first invoice. Staying defers cost, Infinity smooths it and switching front-loads it in exchange for lower running costs later. Put all three on one five-year model, include parallel running and cost per contact, and the right answer for your organization usually becomes clear.
Written by the Aumne AI migration team, who move Avaya, Cisco, Genesys and Nuance estates to Genesys Cloud CX, Amazon Connect and Google Dialogflow CX.
Disclosure: Aumne AI provides a migration platform. Statements about other vendors come from the public sources listed below.
Sources
- 1. Aumne AI, Avaya Migration Options and Costs, https://aumne.ai/blog/avaya-migration-options-cost-comparison
- 2. Aumne AI, Avaya Migration, https://aumne.ai/avaya-migration
- 3. C1, Avaya Upgrade Advantage, https://www.onec1.com/partners/avaya
- 4. Aumne AI, Avaya End of Life 2026, https://aumne.ai/blog/avaya-end-of-life-migration-guide