Phase 1: Pick One Workflow
Do not launch an AI voice agent across the whole phone system first. Pick one bounded workflow: missed-call recovery, after-hours message capture, appointment booking, lead qualification, or reservation handling.
Define success in operational terms. Examples include booked appointment, qualified lead, transferred urgent caller, created ticket, or clean message summary.
Phase 1 Output
Write the workflow contract:
- Caller type
- Allowed intents
- Out-of-scope intents
- Required questions
- Systems touched
- Human fallback path
- Success event
- Failure event
- Analytics owner
Phase 2: Map Systems
List every system the agent must touch: phone number, SIP provider, calendar, CRM, ticketing system, reservation system, EHR/PMS, SMS provider, analytics, and transcript storage.
Decide which systems can be read-only and which systems the agent can modify.
| System | Read | Write | Risk |
|---|---|---|---|
| Phone routing | Caller ID, business hours | Transfer, voicemail, SMS | Dropped or misrouted calls |
| Calendar | Availability | Booking, reschedule, cancellation | Double booking |
| CRM | Contact, lead status | New lead, note, task | Duplicate or bad records |
| Ticketing | Customer, issue type | Ticket, priority, assignment | Missed urgent request |
| Analytics | Call event, cost | Dashboard, QA note | No learning loop |
Phase 2 Output
Create a system map that names the owner for each connection:
- Phone routing owner
- Calendar or booking-system owner
- CRM or ticketing owner
- Knowledge base owner
- Compliance or privacy reviewer
- Staff reviewer for transcripts and summaries
- Vendor or agency support contact
This prevents launch confusion. A failed booking is not only a prompt problem. It might be a calendar permission problem, a webhook timeout, a duplicate matching problem, or a phone transfer rule. The team needs to know who investigates each failure.
Phase 3: Build The Escalation Rules
Escalation is not a backup detail. It is part of the product. Define when the agent should transfer, take a message, create a ticket, send SMS, or stop the workflow.
Sensitive calls should have explicit rules, not model judgment alone.
Phase 3 Output
Write an escalation table:
| Trigger | Agent action | Staff destination | Caller promise |
|---|---|---|---|
| Caller asks for a person | Transfer or take urgent callback | Front desk, intake, support, or manager | ”I can get someone to help.” |
| Urgent symptom or safety concern | Stop normal workflow and escalate | Approved urgent path | ”I will mark this urgent.” |
| Tool failure | Capture clean message or transfer | Staff queue | ”The team can confirm that for you.” |
| Out-of-scope question | Avoid guessing and route | Subject owner | ”I do not want to give you the wrong answer.” |
| High-value lead | Transfer or priority callback | Sales or intake owner | ”I will get this to the right person.” |
The exact wording matters. The agent should not promise immediate callbacks unless the business can staff them.
Phase 4: Test Before Launch
Run the call test script, review transcripts, fix prompts and routing, and confirm real integrations. Check both business-hours and after-hours behavior.
Phase 4 Gate
Do not launch until:
- Happy-path calls pass
- Caller corrections pass
- Interruption-heavy calls pass
- Integration failure behavior is acceptable
- Escalation reaches the right destination
- Staff can read summaries quickly
- Costs are visible
- The privacy and recording plan is approved
Launch Artifacts
Before launch, keep these artifacts in one shared folder:
- Workflow contract
- Phone routing diagram
- Approved knowledge source
- Approved escalation table
- Call recording and disclosure decision
- Vendor quote and usage assumptions
- Five-call test transcript pack
- Integration proof screenshots or logs
- Staff review checklist
- Rollback plan
The rollback plan can be simple: return forwarding to the old number, disable the agent for the affected intent, or route only after-hours calls until the issue is fixed.
Phase 5: Monitor The First 100 Calls
For the first 100 production calls, review failure patterns daily. Track completed workflows, transfers, caller confusion, hang-ups, average call length, and cost per successful outcome.
Create a weekly review rhythm:
- Top failed intents
- Longest calls
- Most common escalation reasons
- Incorrect summaries
- Missed integrations
- Cost per completed workflow
- Staff feedback
- Prompt or routing changes made
First-Week Review Questions
- Which caller intents were not expected?
- Which summaries required replaying the recording?
- Which transfers lacked enough context?
- Which tool calls failed, timed out, or created duplicate data?
- Which calls were longer than expected?
- Which callers asked for a human?
- Which staff members did not trust the output?
- Which costs were higher than modeled?
The review should lead to small changes: one prompt update, one routing fix, one knowledge correction, one escalation rule. Avoid expanding scope while the first workflow is still producing surprises.
Launch Rule
Only expand to a second workflow after the first workflow has predictable results, clear failure handling, and staff trust.
Expansion Criteria
Expand when the first workflow has:
- A stable completion rate
- Clear transfer reasons
- Staff-readable summaries
- Known cost per completed workflow
- No unresolved privacy or recording issue
- A named owner for weekly QA
- A working rollback path
Then add the next workflow as a new launch, not a casual prompt edit. The second workflow needs its own allowed intents, system map, failure paths, and test calls.