๐Ÿ‡ฌ๐Ÿ‡ง UNITED KINGDOM EDITIONUK context. Clear evidence. Better decisions.
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Select up to three products in one category. See the evidence, change the priorities and understand every point.

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Standard weights total 100 points, including 15 for AI. Your choices are normalised back to 100.

AI voice agents / YOUR COMPARISON

The fit, side by side.

Sorted by your documented score
Retell AI

Retell AI โ†—

51โ€“100/100

51% evidence coverage

With AI excluded: 54โ€“100/100

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configured voice minute ยท VAT basis not stated

Teams with implementation support who need control over call flows and human transfers.

Own-number SIP integration is documented, but UK number provisioning and the selected carrier's regulatory requirements need verification.

The first number is earned from documented features. Unverified capabilities create the range. Product scores do not establish the quality, reliability or price of a particular plan.

Inside the feature comparison

โœ“ Supported ยท โ— Limited ยท โˆ’ Not supported ยท ? Not verified

AI voice agents: feature evidence and contribution to the score
Capability & demo questionRetell AI51โ€“100/100 documented fit
Core workflowInbound telephone calls7.0 points available
Ask in the demo

Call the proposed number and speak to the agent.

โœ“ Supported

SIP trunk integration receives calls.

7.0 / 7.0 pointsEvidence โ†—
Core workflowEnglish voice conversations7.0 points available
Ask in the demo

Complete an unscripted English exchange using the intended voice.

โœ“ Supported

English is a configurable agent language.

7.0 / 7.0 pointsEvidence โ†—
Core workflowBusiness knowledge answers7.0 points available
Ask in the demo

Ask a question whose answer appears in an approved business source.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“7.0 / 7.0 points
Core workflowLive system actions7.0 points available
Ask in the demo

Check availability or retrieve a record during a call.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“7.0 / 7.0 points
Core workflowHuman call transfer7.0 points available
Ask in the demo

Ask for a person and complete the transfer.

โœ“ Supported

Cold, warm and agentic warm transfers are documented.

7.0 / 7.0 pointsEvidence โ†—
Workflow depthDocumented UK number route4.0 points available
Ask in the demo

Show UK number provision or a supported import/trunking route for the deployment.

? Not verified

Direct purchase is US/Canada only. A UK carrier route is not yet verified.

0.0โ€“4.0 / 4.0 pointsEvidence โ†—
Workflow depthInterruption handling4.0 points available
Ask in the demo

Interrupt the agent mid-sentence and change the request.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“4.0 / 4.0 points
Workflow depthKeypad or IVR handling4.0 points available
Ask in the demo

Use or navigate a keypad-driven step where the workflow needs it.

โœ“ Supported

Warm transfer can navigate destination IVR.

4.0 / 4.0 pointsEvidence โ†—
Workflow depthTransfer with context4.0 points available
Ask in the demo

Pass a summary or relevant call data to the receiving person.

โœ“ Supported

Whisper debrief privately briefs the receiving agent.

4.0 / 4.0 pointsEvidence โ†—
Workflow depthNo-answer transfer recovery4.0 points available
Ask in the demo

Make the destination unavailable and inspect the fallback.

โœ“ Supported

Agentic transfer timeout can cancel or bridge.

4.0 / 4.0 pointsEvidence โ†—
Workflow depthControlled outbound calling4.0 points available
Ask in the demo

Initiate an authorised outbound call and show recipient controls.

โœ“ Supported

Imported SIP numbers can originate calls.

4.0 / 4.0 pointsEvidence โ†—
Workflow depthRecordings and transcripts4.0 points available
Ask in the demo

Locate a call's recording and readable transcript.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“4.0 / 4.0 points
Workflow depthStructured post-call results4.0 points available
Ask in the demo

Extract an agreed field or disposition from the call.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“4.0 / 4.0 points
Workflow depthPost-call webhooks4.0 points available
Ask in the demo

Deliver the call result to a CRM or workflow.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“4.0 / 4.0 points
Workflow depthSafe testing before deployment4.0 points available
Ask in the demo

Test a changed agent separately from live traffic.

โœ“ Supported

Version tags separate deployed agent configurations.

4.0 / 4.0 pointsEvidence โ†—
Workflow depthRecording and data controls5.0 points available
Ask in the demo

Show retention or recording controls for the account.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“5.0 / 5.0 points
Workflow depthCapacity and cost controls5.0 points available
Ask in the demo

Explain concurrency, queued calls and the full per-call cost.

โœ“ Supported

Pricing lists 20 included concurrent calls and extra capacity.

5.0 / 5.0 pointsEvidence โ†—
AIVoice and conversational tuning5.0 points available
Ask in the demo

Configure voice or turn-taking behaviour for the use case.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“5.0 / 5.0 points
AIAI-assisted agent configuration5.0 points available
Ask in the demo

Draft or revise the agent from a plain-language instruction.

โœ“ Supported

Conductor creates and refines agent configuration.

5.0 / 5.0 pointsEvidence โ†—
AIAutomated call-quality analysis5.0 points available
Ask in the demo

Run configurable evaluation criteria over completed calls.

? Not verified

Exact workflow not verified in the reviewed material; request a demonstration.

0.0โ€“5.0 / 5.0 points

โ€œNot verifiedโ€ means the recorded evidence does not settle this specific check. It does not mean the feature is absent. Read the scoring method.

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