Alternatives

Products that do what NumSphere does

Transform your business VoIP Custom Functionality

1. 1
   Voicl 2.0▲334

   Easily add voice widgets to your website

   2022

2. 2
   OpenPhone▲271

   Simplest way to own a business phone number

   2018

3. 3
   NextOS▲104

   Omnichannel business communication: CRM, Chat, Surveys, VoIP

   2018

4. 4
   Harmony AI Voice Assistant▲273

   Manage email and calendar with voice

   2025

5. 5
   Baremetrics Messaging▲224

   SaaS messaging tool to onboard, engage & retain customers

   2020

6. 6
   Regular.io▲68

   SaaS Integration as a Service

   2014

7. 7
   KugelAudio▲106

   Real-time text-to-speech model you can self-host

   May 2026 · kugelaudio.com

8. 8
   Numverify▲81

   Global phone number validation and lookup API

   2019

9. 9
   Fone.do▲124

   A cloud based phone system for small businesses

   2015

10. 10
    VOIQ▲94

    Voice Intelligence for Sales Calls

    2015

11. 11
    NumGenie▲101

    Your Global Phone Number Generator

    Sep 2025

12. 12
    Half Price Employee▲85

    Virtual employees ready to answer your phone calls

    2018

13. 13
    Voizy▲89

    Contact form for voice & text messages

    2020

14. 14TV
    Telegram VoIP library▲79

    2017 · daniil.it

15. 15
    VoIP Call Center▲3

    SaaS, Sales Tools, CRM, Open Source, Developer Tools

    Mar 2026

16. 16
    DialLink ▲26

    Business calls, messages & AI voice agents in one platform

    2025

17. 17
    Zappx▲57

    a power dialer built for sales people by sales people

    2024

18. 18WH
    WebRTC helped me to launch my startup after 2 years of waiting.▲42

    Hi All ,I been working on my idea , A Voice CRM solution for 2 years.When I started brainstorming the idea the only option I have to receive phone calls thru browser was a flash widget or use 3rd party providers like Twilio or Phono . Thanks to WebRTC we now integrated our VoIP services to receive and make calls directly thru browser .Please have a look and give us your feedback .Thanks Voz.io Team .

    2013 · voz.io

19. 19
    TrioPBX▲12

    Advanced voip & cloud pbx services for you

    Oct 2025

20. 20
    Vocea▲28

    AI Voice Assistant for Service Providers

    2025

21. 21
    Vodia IP▲6

    Pbx | cloud-based business phone system

    Oct 2025

22. 22RY
    Replace your business voicemail with a voice assistant▲7

    2019 · clearcall.app

23. 23
    Calilio▲6

    The modern business phone system

    2025

24. 24DF
    Discord for businesses – Vocal▲7

    2022 · getvocal.app

Ranked by how close each launch is in meaning, then by votes. Refine with a description →