
Asterisk
FreeSWITCH
FusionPBX
Wazo.io
Kamailio
miniSIPServer
XiVO
FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).

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?
Website, pricing, platforms and company facts side by side.
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| Website | freepbx.org | 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.
FreePBX One Year Follow up Review and The Phones We Use: Yealink YEA-W56P & Zoiper
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 freepbx and StackMail. For example, how are they different and which one is better?
When comparing freepbx 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.
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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.
Compare FreeSWITCH to freepbx or StackMail:



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