Features
Everything the voice platform does, in one place.
Programmable voice and SMS, conversation AI, call tracking and a carrier network we own — explore every capability behind the Callr platform.
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54 features
Interactive Voice Response (IVR)
Greet, qualify and route every caller.
Programmable VoiceClick-to-Call
Connect two numbers with one API call.
Programmable VoiceConferencing
Bridge multiple participants into one call.
Programmable VoiceDTMF input
Capture keypad input mid-call.
Programmable VoiceVoicemail detection
Tell a human from an answering machine.
Programmable VoiceReal-time call control
Change a live call on the fly.
Programmable VoiceBusiness-hours routing
Route by opening hours and holidays.
Programmable VoiceVoice broadcasting
Send a recorded message to thousands.
Programmable VoiceInbound & outbound calls
Handle calls in both directions.
Programmable VoiceCall transcription
Automatic transcripts with speaker diarization.
AI & Conversation IntelligenceSentiment analysis
Read the caller’s mood from the call.
AI & Conversation IntelligenceIntent detection
Classify why each caller reached out.
AI & Conversation IntelligenceKeyword & topic extraction
Surface the topics that matter.
AI & Conversation IntelligenceStructured data extraction
Turn conversations into clean fields.
AI & Conversation IntelligenceAI Voice Agents
Agents that resolve real calls end to end.
AI & Conversation IntelligenceBring your own model
Plug in GPT, Claude, Mistral or Llama.
AI & Conversation IntelligenceText-to-speech
Natural multilingual speech from text.
AI & Conversation IntelligenceSpeech recognition
Understand spoken input in many languages.
AI & Conversation IntelligenceElevenLabs, Vapi & OpenAI Realtime
Bridge calls to your voice-AI platform.
AI & Conversation IntelligenceOutbound SMS
Send SMS worldwide from one API.
SMS & MessagingInbound SMS
Receive SMS on dedicated numbers.
SMS & MessagingCustom sender ID
Brand your messages with your name.
SMS & MessagingShort codes
High-throughput numbers for campaigns.
SMS & MessagingLong virtual numbers
Two-way conversations on full numbers.
SMS & MessagingDelivery reports
Know the status of every message.
SMS & MessagingGSM & Unicode
Any language, any alphabet.
SMS & MessagingEmail notifications
Trigger emails from your call flows.
SMS & MessagingSMS data capture
Pull structured data from replies.
SMS & MessagingCall tracking
Tie every call to the campaign behind it.
Tracking & AnalyticsDynamic number insertion
Show each visitor a tracked number.
Tracking & AnalyticsSource attribution
Credit the channel that earned the call.
Tracking & AnalyticsCall Detail Records
Every call’s metadata, captured.
Tracking & AnalyticsUnique callers
Deduplicate repeat callers.
Tracking & AnalyticsGeographic origin
See where each call comes from.
Tracking & AnalyticsRing & talk time
Precise timing on every call.
Tracking & AnalyticsGoogle Analytics
Push calls into GA4 as conversions.
Tracking & AnalyticsMixpanel
Track calls as product events.
Tracking & AnalyticsGlobal number provisioning
Numbers in 220+ countries in seconds.
Carrier & NetworkSIP trunking
Enterprise trunking, encrypted.
Carrier & NetworkOwn carrier network
A registered carrier, not a reseller.
Carrier & NetworkGlobal footprint
Physical points of presence worldwide.
Carrier & NetworkEncrypted by default
TLS & SRTP across the network.
Carrier & NetworkInterconnected data centers
Direct carrier interconnects.
Carrier & NetworkNumber portability
Bring your existing numbers.
Carrier & NetworkREST API
A documented API for everything.
Integrations & AutomationWebhooks
Real-time events pushed to you.
Integrations & AutomationData push
Send call data to your stack live.
Integrations & AutomationData fetch
Pull live data into a call.
Integrations & AutomationCRM integrations
Salesforce, HubSpot, Google, Microsoft.
Integrations & AutomationNo-code automation
Connect via Zapier & Make.
Integrations & AutomationCallr Actions
Build call flows as low-code scenarios.
Integrations & AutomationLive debugger
Watch a scenario run in real time.
Integrations & AutomationAudio library
Manage prompts and hold music.
Integrations & AutomationMCP server
Bring Callr’s docs to your AI tools.
Integrations & AutomationWe own our network
Every feature runs on infrastructure we own.
Callr is a registered carrier operating its own servers and network — not reselling a hyperscaler’s. That’s why numbers provision in seconds, audio stays clean at scale, and you choose where your data lives.
220+ countries
Provision numbers and route calls almost anywhere, in seconds.
Owned & encrypted
Our own servers and network, with TLS and SRTP throughout.
2.5M+ calls a day
Carrier-grade reliability, proven for 300+ companies.
See the platform on your own use case.
Start building for free, or get a guided tour from the team.