Lead Call Answering Service That Protects Your Ad Spend

Retell answers every call your ad campaigns generate, qualifies the lead on the spot, and hands off the warm ones to your team, so no paid click ever goes to voicemail.

Try For Free
The Problem

Why Paid-Lead Businesses Are Moving to an AI Answering Service

Every call from a Google or Facebook ad already cost you money before it rang. Industry benchmarks put average cost per lead well into the double or triple digits, and higher still in competitive categories like legal and home services. A traditional answering service still puts callers on hold or sends them to voicemail during a busy stretch, and most people who hit voicemail do not call back, they call the next result instead. Retell answers on the first ring and qualifies the caller immediately, so the spend behind that call is not wasted.

Lead Call Answering Service That Protects Your Ad Spend
Comparison

Retell VS. A Traditional Lead Call Answering Service

Hours
What You Pay For
Wait Time
Busy Periods
Consistency
Languages
Handing Off To You
Setup
Your Tools
Traditional Answering Service
Business hours, or a paid add-on for nights and weekends, while your ads keep running around the clock
Per minute and per call, with hold time and monthly retainers stacked on top of what you already paid for the click
Callers hold for the next free operator while the meter on your ad spend keeps running
Limited by how many operators are staffed; callers wait or drop during a campaign surge
Varies with whoever picks up, so not every paid lead gets the same qualifying questions
Usually English, more languages cost extra, even if your ads run in more than one
Takes a message or transfers with little context on which campaign or keyword the caller came from
Write scripts, brief operators, wait for training before your next campaign can go live
Messages relayed by email or portal, disconnected from the campaign that generated the call
Every call answered 24/7, including nights, weekends and holidays, matching the hours your campaigns are actually live
Usage-based from $0.07/min, $10 in free credits to start
Answered on the first ring, no queue, no lead going cold
20 concurrent calls included, higher on Enterprise, so a spike in ad traffic does not overflow to voicemail
The same qualifying questions and answer quality on every call
More than one language handled the same way
Warm transfer with the full transcript, qualification answers and CRM record attached
Start from a template, sync your knowledge base, go live
Connects to your CRM and helpdesk and logs the call against its source during the call
Cost per minute
$0.07-$0.31/min
LLM: gpt-5
$0.040/min
TTS: platform
$0.015/min
Voice Engine
$0.055/min
Background speech removal
$0.005/min
Safety Guardrails
$0.005/min
Buyer’s Guide

How to Choose a Lead Call Answering Service

Capabilities

What Our Agent Does on a Lead Call

Qualifies Every Paid Lead on the Spot:
It asks the qualifying questions you would ask yourself, like budget, timeline and intent, before the call ever reaches your team.
It can route hot leads straight to sales and let cooler ones fall into a nurture sequence, so your team's time is not split evenly across leads that were never going to convert.
When a lead is ready, the agent warm-transfers them along with the full conversation and qualification answers.
Logs Every Call Against Its Source:
It captures the campaign, keyword or ad that generated the call and pushes it to your CRM alongside the transcript.
It can look up a caller's record mid-call if they have called before, so you are not paying to re-qualify the same lead twice.
It can pull from your CRM, ad platform data or ticketing tools over secure webhooks while the call is live.
Setup

Live in Four Steps

Step 1

Build

Set the agent up in a no-code dashboard or with the API, and point it at your offer, pricing and FAQs.
Step 2

Test

Run it against real calls from your live campaigns and confirm it qualifies well and hands off cleanly.
Step 3

Deploy

Connect the number in your ads over SIP trunking, or take a new tracking number, then go live on voice, SMS and chat.
Step 4

Monitor

Track answer rate, qualification rate and cost per qualified lead from the dashboard, and refine over time.
Value

Why Businesses Choose Retell

Conversations That Feel Human

Conversations That Feel Human

A Clean Handoff to Your Team

A Clean Handoff to Your Team

Reporting You Can Act On

Reporting You Can Act On

Built for Sensitive Data

Built for Sensitive Data
Integrations

Seamless

Integrations with Your
Tech Stack

View All Integrations
  • Hubspot
  • Twilio
  • Vonage
  • Go High Level
  • n8n
  • Zapier
  • Salesforce
  • Hubspot
  • Twillio
  • Vonage
  • Go High Level
  • 8n8
  • Zapier
  • Salesforce
  • Avaya
  • Genesys
  • Five9
  • Amazon Connect
  • Telnyx
  • Make
  • Cal.com
  • Avaya
  • Genesys
  • Five9
  • Amazon Connect
  • Telnyx
  • Make
  • Cal.com
Overview

Built to scale with you

From quick-start simplicity to enterprise-grade security, compliance, and support. Retell meets you wherever you are.

Pay as you go

Go live in minutes with $10 in free credits. Full platform access, no commitments. Just build, test, and pay as you scale.

  • $0.07-$0.31 / min for AI Voice Agents
  • $0.002+/ msg for AI Chat Agents
  • Sign up for free

    Enterprise Plan

    Purpose-built for organizations that demand higher reliability, tighter compliance, and dedicated support, with volume pricing that scales as you grow.

  • Custom Pricingfor AI Voice Agents
  • Custom Pricingfor AI Chat Agents
  • Contact sales

    Put Your Business Answering Service to Work Today

    Start from a template, sync your knowledge base, and connect your line or take a new number. Try it on your real calls, then go live on voice, SMS and chat.

    FAQ

    Common  Questions

    How does Retell qualify callers from my paid ad campaigns?

    Retell asks the same qualifying questions you would, like budget, timeline and intent, on every call before it ever reaches your team. It follows your script or knowledge base, so each paid lead gets a consistent qualification, then hands off the ones worth your time with the full transcript attached.

    How does an AI answering service protect my ad spend?

    Every call from a Google or Facebook ad already cost you money before it rang. Studies show most people whose call goes unanswered do not leave a voicemail, they call the next result instead, so a missed call from a paid campaign is a direct loss, not just a missed chance. Retell answers on the first ring, 24/7, so the spend behind that call is not wasted on a ring nobody picks up.

    Can Retell tell me which campaign or keyword generated a call?

    Yes. Retell can log the call against the campaign, keyword or ad that generated it and push that record straight to your CRM along with the transcript and qualification answers, so you can see which campaigns are actually producing leads worth the spend.

    How much does Retell's lead call answering service cost?

    Retell is usage-based starting at $0.07 per minute, with $10 in free credits to start, so you are not paying a per-call fee or a monthly retainer on top of what you already spent to generate the lead.

    Can Retell answer calls in more than one language?

    Yes. Retell handles more than one language with the same qualifying questions and answer quality, at no extra cost, which matters if your campaigns run in more than one language or market.

    How fast can I get a lead call answering service live?

    You can start from a template, sync your knowledge base, and connect the number your ads already point to, or take a new tracking number, the same day. There are no scripts to write or operators to train before your next campaign goes live.

    Does a real person ever get involved?

    Yes. When a lead is ready for your team, Retell warm-transfers the call along with the full transcript, qualification answers and CRM record, so whoever picks up already has the context and does not need to re-qualify the caller.

    Revolutionize your call operation with Retell