Top 8 Open-Source Alternatives to Numero eSIM

Numero eSIM

Numero eSIM is a phone-number app that makes voice and data possible anywhere in the world, for free.

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Pricing:

Official Pricing

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Product categories

Call Center Software Call Management Chat Cloud Business Telephony Cloud Contact Center Communication Enterprise Communication Enterprise Software Group Chat & Notifications Messaging Telecommunications VoIP

Summary

The top open-source alternatives to Numero eSIM are RingCentral, CloudTalk, and Discord. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

RingCentral Landing Page
1

RingCentral

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Pricing:
- Open Source
- Freemium
- Free Trial
- $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)
#Communication #VoIP #Cloud Contact Center 3 social mentions
CloudTalk Landing Page
2

CloudTalk

Work locally, grow globally
Pricing:
- Open Source
- Paid
- Free Trial
- $25.0 / Monthly
#Communication #Enterprise Communication #Call Center Software
Discord Landing Page
3

Discord

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 122 social mentions
freepbx Landing Page
4

freepbx

FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
Pricing:
- Open Source
#Communication #VoIP #Enterprise Communication
Signal Landing Page
5

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions
Melrose Labs SMSC Simulator Landing Page
6

Melrose Labs SMSC Simulator

SMPP SMSC simulator to test SMS messaging applications.
Pricing:
- Open Source
- Freemium
- Free Trial
#Messaging #Communication #Text Messaging
Telegram Landing Page
7

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Pricing:
- Open Source
#Communication #Messaging #Instant Messaging 129 social mentions
2nd Number Landing Page
8

2nd Number

2nd number lets you call and text to US & Canada at low rates. Make private calls, send texts, and connect internationally using your data or WiFi.
Pricing:
- Open Source
- Freemium
- Free Trial
- $10.0 / Monthly
#Communication #Telecommunications #Cloud Business Telephony