AI Call Center Software
For Inbound and Outbound Calls
Phone Stack is the AI call center that runs itself. Deploy AI callers in minutes, answer every inbound call 24/7, and run outbound campaigns that book meetings, qualify leads, and update your CRM automatically.
No credit card required.
What is an AI call center?
An AI call center is a contact center where AI callers — voice agents powered by large language models — handle inbound and outbound phone conversations in place of human agents. Phone Stack is a complete AI call center platform: it ships with a campaign engine, inbound routing, voicemail detection, CRM integrations, live monitoring, and analytics out of the box.
Unlike a traditional call center that depends on headcount, an AI call center scales to thousands of concurrent calls instantly, runs 24/7, and costs ~90% less per minute. Most teams use an AI call center for tier-1 volume — appointment booking, FAQs, lead qualification, payment reminders — and route exceptions to human agents.
Inbound AI Call Center
- 24/7 AI call answering with sub-second latency
- Intelligent routing to humans, voicemail, or AI
- Appointment booking with calendar integrations
- Knowledge-base answers from your docs
- Replace IVR phone trees with natural conversation
Outbound AI Call Center
- Goal-oriented campaigns (book meetings, qualify, survey)
- Contact-list dispatch with audience snapshotting
- Voicemail detection with personalized voicemail drops
- Phone-tree navigation (in-band DTMF, auto-press-0)
- Post-call emails, webhooks, and CRM writeback
AI Call Center vs Traditional Call Center vs BPO
| AI Call Center | Traditional | BPO | |
|---|---|---|---|
| 24/7 availability | Limited | ||
| Cost per minute | $0.25 | $1.50–$3.00 | $0.75–$2.00 |
| Time to launch | 15 minutes | Weeks | Months |
| Concurrent capacity | Unlimited | Headcount | Headcount |
| Quality consistency | Variable | Variable | |
| Multi-language | 30+ languages | Limited | Per-region |
| CRM integrations | Manual | Custom | |
| Compliance built-in | Per-vendor |
Related solutions
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90-day migration plan.
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AI sequences that convert.
First-party invoice + dunning calls.
AI Call Center FAQs
Common questions about deploying AI call center software.
Launch your AI call center today
Train your first AI caller in 15 minutes. 30 free minutes, no card required.