🚀 The open-source alternative to Twilio.
- Language
- TypeScript
- Licence
- MIT
- Stars
- 8.1k
- Latest
- v0.22.14
- Last push
- 2026-09-18
Telephony and SMS gateways
Run voice calls, SIP trunks and SMS sending on your own servers behind an API.
Changes in this category (RSS)
Side by side
| Tool | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|
| Fonoster | 8.1k | MIT | Open source | Yes | TypeScript | v0.22.14 | 2026-09-18 |
| SMS Gateway for Android | 5.8k | Apache-2.0 | Open source | Yes | Kotlin | v1.77.1 | 2026-10-05 |
| FreeSWITCH | 5.2k | Other | Open source | Yes | C | v1.11.3 | 2026-10-02 |
| Asterisk | 3.6k | Other | Open source | Yes | C | 23.5.0 | 2026-10-05 |
| textbee | 3.1k | MIT | Open source | Yes | TypeScript | v2.9.0 | 2026-10-05 |
| Kamailio | 3k | Other | Open source | Yes | C | 6.0.8 | 2026-10-06 |
| HOMER | 2k | Other | Open source | Yes | Go | 11.0.357 | 2026-10-04 |
| OpenSIPS | 1.5k | Other | Open source | Yes | C | 4.0.2 | 2026-10-06 |
| Jasmin | 1.2k | Other | Open source | Yes | Python | 0.11.0 | 2026-04-26 |
| jambonz | 103 | MIT | Open source | Yes | JavaScript | v0.9.14 | 2026-10-04 |
10 tools
The SMS Gateway for Android™ app enables sending and receiving SMS messages through an API that can be accessed directly on the device or via a cloud server when direct device access is not possible.
- Language
- Kotlin
- Licence
- Apache-2.0
- Stars
- 5.8k
- Latest
- v1.77.1
- Last push
- 2026-10-05
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.
The official Asterisk Project repository.
open-source sms-gateway. turn any android phone into an sms gateway
- Language
- TypeScript
- Licence
- MIT
- Stars
- 3.1k
- Latest
- v2.9.0
- Last push
- 2026-10-05
Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability
HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring
OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.
Jasmin - Open source SMS gateway
Core telephony feature server for the jambones platform
- Language
- JavaScript
- Licence
- MIT
- Stars
- 103
- Latest
- v0.9.14
- Last push
- 2026-10-04