
Asterisk
FusionPBX
Kamailio
Wazo.io
freepbx
XiVO
miniSIPServer
FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.

Mailflow.sh
Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!
Which is more popular?
Based on our record, FreeSWITCH seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | freeswitch.com | stackmail.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
FreeSWITCH Explained
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using FreeSWITCH and StackMail. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I thought FREESwitch was the new hotness in PBX software? https://freeswitch.com/. - Source: Hacker News / almost 5 years ago
Tracking StackMail since Aug 2023.
When comparing FreeSWITCH and StackMail, you can also consider the following products.

An open source telephony switching and private branch exchange service for Linux.
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A self-hosted, unified webmail client. Connect multiple IMAP/SMTP accounts and manage them all in one clean interface.
Compare Mailflow.sh to FreeSWITCH or StackMail:


Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under...
Compare Kamailio to FreeSWITCH or StackMail:


FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
Compare freepbx to FreeSWITCH or StackMail: