# What is CPS (Calls Per Second)?

> CPS (calls per second) is the voice-network equivalent of messaging TPS: the maximum rate at which a platform or carrier trunk accepts new call attempts. It caps outbound dialing bursts — voice-OTP campaigns, notifications, or contact-center diallers — independently of how many calls are concurrently active. Exceeding the contracted CPS causes call attempts to be rejected or queued. See /answers/what-is-tps, /answers/what-is-pdd, and /tools/erlang-calculator.

- Canonical URL: https://www.broadnet.me/answers/what-is-cps
- Language: en
- Last reviewed: 2026-07-22
- Publisher: BroadNet (https://www.broadnet.me)

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What is TPS (Transactions Per Second)?](https://www.broadnet.me/answers/what-is-tps)
- [What is PDD (Post-Dial Delay)?](https://www.broadnet.me/answers/what-is-pdd)
- [What is a throughput SLA?](https://www.broadnet.me/answers/what-is-throughput-sla)
- [How does programmable voice work?](https://www.broadnet.me/answers/programmable-voice)
- [Erlang calculator](https://www.broadnet.me/tools/erlang-calculator)
- [Voice](https://www.broadnet.me/products/voice)