How to Switch from Retell AI to CallSphere: Migration Guide

Why Businesses Switch from Retell AI to CallSphere

Businesses typically switch from Retell AI to CallSphere for three reasons: predictable flat pricing instead of per-minute charges, voice + chat in one unified platform, and faster deployment with no engineering required.

Migration Timeline

Most Retell AI to CallSphere migrations complete in 5-7 business days. Here is the step-by-step process:

Day 1-2: Discovery & Configuration

1. Export your data from Retell AI — call logs, contacts, and conversation flows
2. Configure CallSphere with your business knowledge base, hours, and workflows
3. Set up integrations — connect your CRM, scheduling tool, and payment processor
4. Define routing rules — how calls should be handled by type and urgency

Day 3-4: Testing & Refinement

1. Internal testing — your team calls the AI agent to verify responses
2. Edge case tuning — adjust for industry-specific scenarios
3. Integration verification — confirm data flows correctly to all connected systems
4. Escalation testing — verify human handoff works smoothly

Day 5: Number Porting & Go-Live

1. Port your phone numbers from Retell AI to CallSphere (we handle the porting process)
2. Parallel running — both systems active briefly to ensure zero downtime
3. Cutover — Retell AI deactivated, CallSphere handling 100% of traffic
4. Monitoring — CallSphere team monitors the first 48 hours post-migration

What You Keep

• All your existing phone numbers (ported seamlessly)
• Call history and analytics (exported from Retell AI)
• Customer contact data
• Business workflow logic (reconfigured in CallSphere)

What You Gain

• Voice + Chat unified — one platform for phone calls, web chat, SMS, and WhatsApp
• Flat monthly pricing — no more per-minute billing surprises
• 57+ languages — serve international customers naturally
• HIPAA compliance — available with signed BAA for healthcare businesses
• No engineering required — no-code configuration and managed deployment

Common Migration Questions

Will I lose my phone numbers? No. We port your existing numbers to CallSphere. The process takes 1-3 business days and we coordinate the timing to ensure zero downtime.

Is there a contract lock-in? No. CallSphere offers month-to-month billing with no long-term contracts required.

Can I run both platforms simultaneously? Yes. During migration, we recommend a brief parallel period where both systems are active. This ensures no calls are missed during the transition.

How long until I see ROI? Most businesses see positive ROI within the first month. The combination of flat pricing, 24/7 coverage, and zero missed calls typically pays for itself quickly.

Start Your Migration

Ready to switch from Retell AI to CallSphere? Book a migration consultation — our team handles the technical details so you can focus on your business.