Assembled explores how to evaluate AI voice agents for real-world phone support, based on what really matters.
Phone support is one of the hardest parts of customer service to scale – and one of the most expensive to get wrong.
Customers call when issues are urgent, emotional, or complex. Agents need deep context. Wait times matter. And unlike chat, there’s no room for looping scripts or brittle automation.
AI voice agents promise a way forward. But in practice, not all solutions are built for real support environments.
Some modernize IVRs without improving resolution. Others demo well but struggle with escalation, integrations, or cost predictability once deployed. And many platforms labelled “voice AI” are still optimized for chat-first automation, not live phone conversations.
How to Choose the Ideal AI Voice Solution For Your Business
Choosing an AI voice agent isn’t just a technology decision — it’s a strategic investment that will shape your support operations for years.
After working with hundreds of teams adopting voice AI, a clear pattern emerges: the most successful implementations start with aligned goals, rigorous evaluation, and a plan for long-term scalability. Here’s a practical framework to guide your decision.
Prioritize Business Goals and Needs
Start with outcomes, not features. Before evaluating vendors, clarify what success looks like for your organization. This ensures your pilot, KPIs, and vendor selection remain aligned.
Ask yourself:
- What problem are we solving? (Cost reduction? Lower wait times? CSAT improvement? After-hours coverage?)
- What does success look like in 90 days, 6 months, 12 months?
- Which KPIs will prove ROI to your leadership team?
Most teams cluster around a few core goals:
| Goal | KPIs |
|---|---|
| Reduce Operational Costs | Cost Per Contact, Automation Rate |
| Improve Customer Satisfaction | CSAT, Sentiment, First-Call Resolution |
| Scale Without Adding Headcount | Solves Per Hour, Handle Time |
| Reduce Wait Times | Average Wait Time, Abandonment |
| Expand 24/7 Coverage | After-Hours Resolution, Callback Volume |
The key is matching your pilot and vendor evaluation to the specific outcomes you want. For example:
- If you want higher resolution, look for platforms with strong CRM, billing, and backend integrations.
- If you want better routing, prioritize advanced NLU, sentiment detection, and pre-handoff verification.
- If you want better after-hours coverage, look for consistent performance, smart follow-up workflows, and contextual escalations.
Teams that define narrow, measurable pilot goals — like “resolve 25% of cancellation requests” — see time to value significantly faster.
1. Telephony and Contact Centre Platform
Your AI must slot naturally into tools.
If SIP connections are required, plan for 4–6 weeks of setup, testing, and validation.
2. CRM and Ticketing Systems
Look for real-time, two-way sync for:
- accurate case creation
- full customer history
- automated wrap-up notes
- consistent categorization
Poor CRM integration creates downstream reporting and QA issues, and undermines trust in automation.
3. Knowledge Bases
Your AI should be able to pull from and stay aligned with:
- Notion
- Confluence
- Guru
- Google Drive
…and it must respect permissions and version control cleanly.
4. Backend Systems
This is where meaningful automation happens. Ensure the AI can interact with:
- order and fulfillment tools (Shopify, ERP systems)
- Authentication APIs
- Billing/payment systems
- Custom internal applications
A unified performance view, ties AI activity, human activity, and WFM data together so teams can understand operational impact without juggling dashboards.
Watch out for vendors who:
- Require manual data exports
- Can’t adapt to future CRM changes
- Split reporting across multiple interfaces
- Don’t support real-time syncing
Ask every vendor: “Show me how your AI accesses our CRM data during a live call.”
The strongest partners will have a crisp, confident answer.
Pilot Programs For Testing Performance
Never buy an AI voice solution without proving its value in your environment — with your data, your edge cases, and your workflows.
There are three common pilot structures:
1. Opt-Out Trials (30–90 days)
Good when you’re already strongly leaning toward a vendor.
2. Paid Pilots
Best for validating a specific workflow before expanding.
3. Proof-of-Concept (2–12 weeks)
Tight, time-bound tests focused on validating critical capabilities.
Best Practices For Voice AI Pilots:
- Scope narrowly.
- Good: “Resolve 25% of cancellation requests.”
- Bad: “Resolve 25% of all cases.”
- Use preview tools first before exposing customers.
- Start with small volumes (20–100 calls) and scale only after quality is validated.
- Plan integration timelines for SIP, authentication APIs, and backend connections.
- Define success criteria up front — technical, operational, and value-based.
A successful pilot proves five things:
- The AI works with your systems.
- Responses are accurate and on-brand.
- Agents can manage and refine workflows without engineering.
- Core metrics move in the right direction.
- The vendor is responsive, transparent, and collaborative.
Plan For Evolving Demands
Your needs today won’t match your needs in 12–36 months. A future-proof AI voice solution should be able to grow with your business across five dimensions.
1. Multi-Channel Expansion
Workflows built for chat, email, or voice should be reusable with minimal changes. This protects your investment as your channel mix shifts.
2. Geographic and Market Expansion
If you’re expanding into new regions or launching new brands, your AI should support:
- Multiple languages
- Time zone–aware handoffs
- Regional compliance
- Multi-brand routing and reporting
3. Automation Maturity
Support operations typically evolve from:
- 5–10% automation (simple FAQs)
- to ~30% (AI-assisted workflows)
- to 40–50%+ (full autonomous resolution)
Choose a platform that supports this climb without requiring full rebuilds at each stage.
4. Workforce Management Integration
As automation grows, staffing strategy must evolve. Integrating voice AI with WFM data ensures:
- Accurate forecasting
- SLA protection
- Capacity-aware handoffs
- Right-sized staffing plans
5. Flexibility Across Brands, Segments, and Products
If you operate multiple brands or business units, or if you’re a BPO, look for:
- Per-brand workflow controls
- Granular routing rules
- Detailed segment-level reporting
Ask Vendors Directly:
- “What happens when we triple our automation?”
- “If we switch CRMs, how painful is migration?”
- “Can we take our workflows and data with us if we change platforms?”
A scalable platform gives clear, confident answers, not vague reassurance or lock-in.
This blog post has been re-published by kind permission of Assembled – View the Original Article
For more information about Assembled - visit the Assembled Website
Call Centre Helper is not responsible for the content of these guest blog posts. The opinions expressed in this article are those of the author, and do not necessarily reflect those of Call Centre Helper.
Author: Assembled
Reviewed by: Megan Jones
Published On: 12th Feb 2026
Read more about - Guest Blogs, Assembled
Assembled is a Support Operations platform that helps companies maintain exceptional customer experiences, no matter what lies ahead. Leading brands use Assembled's workforce and vendor management capabilities to make optimal staffing decisions, gain visibility into performance and productivity, and unlock new ways to serve evolving customer needs.



