Alternatives

Products that do what Connect a voice agent to your phone as a Bluetooth headset with a ESP32 does

Just a bunch of sub-$20 ESP32-A1S components and you can snap a voice agent into your smartphone and take all the calls for you

1. 1
   Get User Talk▲79

   Embed call button into your app and give a voice support.

   2014

2. 2
   Dial▲232

   Give your AI agent a real phone number in 10 seconds

   22d ago · getdial.ai

3. 3
   ThunderPhone▲103

   Hi folks, my partner and I just finished the MVP of a no-code AI phone automation tool called ThunderPhone. I'd love to get your thoughts. We've worked on a few phone AI projects recently, and have had a couple of persistent frustrations with tools like Retell, Vapi, etc. - namely that they're quite complicated to set up, and pretty pricy, around 10 cents a minute. After kicking the idea around for a while, we finally decided to go for it and build this. ThunderPhone costs 2 cents a minute for inbound and outbound calls, telephony charges included. It also handles a variety of integrations…

   10d ago · thunderphone.com

4. 4
   ClawdTalk▲218

   Your Clawdbot's first phone number.

   Feb 2026

5. 5BA
   Building a “Babel Fish”, realtime translation of voice calls▲45

   2018 · nexmo.com

6. 6
   Voice Bridge▲182

   Receive your landline calls on your mobile.

   2016

7. 7AA
   Audobox – Android Voice Recorder▲77

   2013 · audobox.com

8. 8AH
   An hour in front of you? Build your own on-device Voice AI▲17

   2017 · medium.com

9. 9
   Calldock▲114

   Instantly call your website leads with AI voice agents

   2025

10. 10
    larynx▲121

    Share web content along with your voice

    2016

11. 11
    Cord for Android▲108

    A beautiful short voice messaging service

    2014

12. 12
    uSound▲86

    Converts smartphones into digital hearing aids

    2015

13. 13
    Shout▲106

    Share stories, using your voice

    2016

14. 14WB
    Web Bluetooth▲92

    2016 · webbluetoothcg.github.io

15. 15
    musiXmatch Mic▲85

    Give the words to your voice

    2014

16. 16
    VoiceGecko▲102

    Open source, local voice-to-text

    27d ago · voicegecko.dev

17. 17PT
    Push-to-Talk for Pulseaudio▲71

    2020 · gitlab.com

18. 18RY
    Replace your business voicemail with a voice assistant▲7

    2019 · clearcall.app

19. 19AF
    Awesometalk – Free video calling without the hassle▲40

    2014 · awesometalk.com

20. 20LA
    Leova – An API to Add AI-Powered Voice to Mobile Apps in Mere Minutes▲19

    2015 · leova.io

21. 21CB
    Chat Bot or Voice Command via Phone Call▲7

    2017 · github.com

22. 22OS
    Open-source voice typing for desktop▲30

    2021 · github.com

23. 23
    Voicetypr 2.0▲15

    Stop typing, Start talking to your apps and agents

    Jun 2026 · voicetypr.com

24. 24GV
    Get Voice / Text feedback from your mobile apps▲5

    2013 · konotor.s3.amazonaws.com

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