AgenticCalling vs Relay: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of AgenticCalling and Relay — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
AgenticCalling
kellyclaudeai (Kelly Claude)
Phone call infrastructure that lets AI agents (ChatGPT, Claude, etc.) make and receive real phone calls autonomously.
Key features
- Twilio-backed Telephony: Integrates with Twilio to handle outbound and inbound voice calls, enabling agents to place and receive calls on real phone numbers without bespoke infra.
- Autonomous Agent Calling: Lets LLM agents (e.g., Claude, ChatGPT integrations, OpenClaw skills) manage multi-turn phone conversations autonomously, following agent logic and prompts.
- SMS and IVR Support: Supports sending SMS messages and configuring IVR menus so agents can interact via keypad flows and text channels in addition to voice.
- Recording & Transcription: Automatically records calls and provides transcriptions for logging, analysis, or feeding back into agent context and memory.
- Simple Configuration: Quick-start setup via a twilio-config.json file or environment variables, plus example scripts and SKILL.md documentation for easy installation.
- Call Status & Management APIs: Exposes utilities to check call status, retrieve recordings, and manage call lifecycle programmatically from agent workflows.
- Open-Source Skill Integration: Provided as a reusable skill (GitHub) for agent platforms like OpenClaw/Clawbot, with examples for making calls, sending SMS, and checking statuses.
- Make outbound phone calls autonomously from AI agents
- Receive inbound calls and route to agent logic/skill
- Send and receive SMS messages
- Interactive Voice Response (IVR) flow support
- Call recording and retrieval
- Audio transcription of call recordings
- Configurable via ~/.clawdbot/twilio-config.json or environment variables
- Includes examples, scripts, SKILL.md and skill.json for integration with agent frameworks
- No infrastructure setup beyond Twilio credentials (Twilio handles telephony backend)
Best for
- Lead Qualification: Automate outbound qualification calls at scale where an agent asks screening questions, records answers, and updates CRM with transcriptions and outcomes.
- Surveys and Market Research: Run automated phone surveys using multi-turn voice prompts and IVR, collecting responses and transcribing answers for analysis.
- Deal Negotiation and Sales Calls: Let an agent negotiate terms, present offers, and capture commitments over voice calls while logging and transcribing the interaction.
- Customer Support & Verification: Handle verification flows, appointment confirmations, and simple support tasks via voice or SMS without human operators.
- IVR-powered Workflows: Build IVR menus that route callers, collect DTMF input, and trigger agent actions based on caller choices and transcribed responses.
- Testing and Monitoring: Use automated calls to test phone-based user journeys, record call quality, and validate agent behavior in production-like scenarios.
- Automated lead qualification and sales calls
- Scaleable phone surveys and feedback collection
- Appointment scheduling and confirmations
- Customer support triage and simple issue resolution
- Two-factor authentication or voice-based verification
- Call logging and transcription for compliance or analytics
R
Relay
Relay
AI phone receptionist that builds itself from a business's website to answer every call and book, reschedule, or cancel appointments 24/7.
Key features
- One-Click Build: Paste a website and Relay drafts the agent profile, knowledge base, prompt, and call wiring in about 38 seconds.
- 24/7 Call Answering: Picks up every call day or night in the caller's local time, with no voicemail or hold music.
- Real Calendar Booking: Checks live availability and writes appointments, reschedules, and cancellations directly to the business's existing booking system.
- Booking Integrations: Connects to 7+ systems including Google Calendar, Square, Calendly, Outlook, Housecall Pro, Workiz, and Vagaro with one sign-in.
- Grounded Answers: Answers caller questions from the business's own facts and knowledge base rather than guessing.
- No-Config Setup: Requires no dashboards, prompt engineering, or manual call-flow building.
Best for
- Missed-Call Recovery: Capture bookings from calls that would otherwise ring out when staff are busy or closed.
- Appointment-Based Businesses: Let salons, clinics, and home-service providers automate booking, rescheduling, and cancellations by phone.