Voice Enterprise Only

Callab AI

SIP-native AI voice agents for existing enterprise telephony stacks

Visit official website
PricingEnterprise Only
Starting priceContact sales
Free planUnknown
Free trialYes
APIYes
Open sourceNo
DeploymentHybrid
Last verifiedJuly 30, 2026
Overview

Tool overview

Callab AI is listed under Voice AI tools.

Summary

What is Callab AI?

Callab AI connects AI voice agents directly to PBX, SBC, SIP, and contact-center infrastructure. It supports inbound and outbound calling, live supervision, knowledge-based responses, transfers, call analysis, and API-driven automation without requiring a full telephony migration.

Best fit

Best for

Enterprises adding multilingual AI voice agents to existing telephony

Audience

Who is it for?

Contact-center teamsTelecom administratorsCustomer-support leadersOutbound operations teamsRegulated service organizations
Recommendation

Decision note

Reviewed the official product, healthcare, API documentation, and platform terms. SIP-native deployment, existing PBX support, 20+ languages, API access, live supervision, knowledge grounding, transfers, call analysis, and enterprise billing terms were confirmed.

Capabilities

Key features

Connects to PBX and contact centers through SIP

Runs inbound and outbound voice-agent workflows

Uses uploaded knowledge for grounded responses

Supports live supervision and human transfer

Generates transcripts and post-call analysis

Provides API access for agent and campaign automation

Workflows

Use cases

Automate routine contact-center inquiries

Launch outbound calling campaigns at scale

Add AI agents to an on-premise PBX

Escalate complex calls with useful summaries

Update CRM records after customer conversations

Strengths

Pros

  • Works with existing SIP telephony infrastructure
  • Supports more than twenty languages
  • Provides live oversight and audit controls
  • Documents an API for operational automation
Considerations

Cons

  • Public package pricing is not listed
  • Deployment requires telephony configuration
  • Call quality depends on carrier and network conditions
Considerations

Limitations

Voice-agent performance depends on audio quality, language and dialect coverage, knowledge accuracy, telephony routing, carrier behavior, and escalation design. Enterprises should validate consent, recording rules, special-category data handling, latency, failure modes, and human handoff before production rollout.

Cost

Pricing details

Pricing modelEnterprise Only
Starting priceContact sales
Free planUnknown
Free trialYes
Pricing context

Billing options

Custom contractCarrier rates and overages
Pricing context

Pricing note

Public prices are not listed. The official terms describe subscriptions, online plans or order forms, carrier rates, and possible overage charges. Confirm SIP capacity, minutes, concurrency, languages, deployment support, and compliance terms directly.

View official pricing
Compatibility

Supported languages

  • 20+ languages
Connectivity

Integrations

SIP

Cisco UCM

Mitel

FreeSWITCH

Twilio

Vonage

Maqsam

CRM systems

Specs

Technical details

PlatformsWeb
Multilingual supportYes
Login requiredYes
Open sourceNo
LicenseProprietary
DeploymentHybrid
CompanyCallab AI (Clusterlabs)
Launch year2024
Models / versionsAI voice agents
Editions / plansFree, Basic, Professional, Organization, and Custom plans
Data confidenceHigh
Last verifiedJuly 30, 2026
Documentation → Data source →
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Answers

Frequently asked questions

Callab AI connects AI voice agents directly to PBX, SBC, SIP, and contact-center infrastructure. It supports inbound and outbound calling, live supervision, knowledge-based responses, transfers, call analysis, and API-driven automation without requiring a full telephony migration.
Enterprises adding multilingual AI voice agents to existing telephony
The listed pricing model for Callab AI is Enterprise only. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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