Last updated: October 2026
For some contact centers, a few minutes of downtime is an inconvenience. For a hospital switchboard, an emergency line or a utility outage desk, it is unacceptable. If that is your world, resilience will matter more than any feature list when you decide whether to move to Avaya Infinity, stay on Aura or AXP, or switch to another platform.
This guide explains what resilience really depends on, how each option compares and what to demand in writing from any vendor.
- Resilience depends more on architecture and operations than on brand.
- Infinity can be deployed across on-premises sites and public clouds, so its resilience depends on the design you buy.
- Aura protects what works today but resilience erodes as patches and parts get harder to source.
- The riskiest moment in any change is cutover, so parallel running matters most.
What resilience means in a contact center
Resilience is the ability to keep answering and routing calls when something fails, whether that is a server, a site, a network link or a cloud region. It covers redundancy, failover speed, recovery targets and how well the operations team responds when things go wrong.
Option 1: Avaya Infinity
Infinity runs on Kubernetes and can be deployed on premises, in hybrid models or on Azure, AWS and Google Cloud. That gives architects real choices for redundancy and geo-redundancy, such as spreading services across data centers or cloud regions. The flip side is that resilience is not automatic. It depends on the topology, the number of sites, how voice is handled in a hybrid estate and who operates the platform.
Pros
- Flexible deployment allows designs that meet strict data and uptime rules.
- Hybrid coexistence with Aura reduces change risk.
Cons
- Resilience depends heavily on deployment design and operations quality.
- Hybrid estates have more moving parts that can fail.
Option 2: Stay on Aura
Many Aura deployments are extremely stable today, with duplicated servers and survivable remote sites. The concern is the future. As releases age, patches slow down, specialist engineers become harder to find and replacement hardware gets scarcer. Each of those raises the time it takes to recover from an incident.
Pros
- Proven stability for existing call flows.
- Full control of infrastructure on your premises.
Cons
- Gradual erosion of support quality and spare parts.
- Disaster recovery often depends on costly second sites.
Option 3: Stay on AXP
AXP customers already rely on Avaya's cloud operations. Resilience is largely in Avaya's hands, so the key questions concern the service commitments in your contract, regional redundancy and how incidents are communicated.
Option 4: Switch to a cloud contact center
Cloud platforms such as Genesys Cloud CX and Amazon Connect are designed to run across multiple availability zones within a region, which removes much of the redundancy work your team does today. Cross-region disaster recovery is possible but needs planning, especially for phone numbers and carrier routing.
| Option | Redundancy approach | Who carries most of the operational burden |
|---|---|---|
| Avaya Infinity | Depends on chosen deployment | Shared between you, Avaya and partner |
| Stay on Aura | Duplicated servers and sites you run | Your team |
| Stay on AXP | Avaya cloud operations | Avaya |
| Switch to cloud | Multiple zones by design | Cloud vendor, with your carrier plan |
The overlooked risk: the migration itself
Platform resilience means little if the move to it causes an outage. The safest migrations keep the old platform live, move a small share of traffic first, compare results against baseline and only complete cutover once everything matches. Carrier routing should allow instant redirection back to the old system if needed.
From the field
From our delivery work: every Aumne ACT migration follows a traffic-shifted cutover with the legacy platform kept live as a fallback, which is how programs reach zero downtime at cutover even on mission-critical estates.
What to ask any vendor about resilience
- Show the failover design for our exact topology, not a generic diagram.
- What are the recovery time and recovery point targets, in writing?
- How are phone numbers rerouted during a regional failure?
- How are incidents communicated and how quickly?
- What happens to calls in progress during failover?
Planning a mission-critical move?
Book a free Aumne assessment and see how a zero-downtime, traffic-shifted cutover would work for your estate.
Conclusion
No platform is resilient by name alone. Infinity, Aura, AXP and cloud platforms can all support mission-critical work if they are designed and operated well. Judge each option on its architecture, its operations model and the safety of the move itself.
About the authors
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
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1.VMblog, Reimagining customer engagement with Avaya Infinity, https://vmblog.com/bylines/reimagining-customer-engagement-avaya-infinity-at-the-forefront/
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2.Aumne AI, Avaya End of Life 2026, https://aumne.ai/blog/avaya-end-of-life-migration-guide
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3.Aumne AI, Avaya Migration, https://aumne.ai/avaya-migration