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3CX Softphone

The legacy 3CX softphone for Windows is a free app developed by 3CX that allows making and receiving VoIP calls independent of the 3CX phone system. It supports SIP trunk providers and standard headsets, enabling users to make calls over the internet without traditional phone hardware.
Latest: 5.5
Last checked: Mar 17, 2026 4:58pm
Rank: 378/15140
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Overview

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License: Free (legacy softphone)Winget: Available

Version & Lifecycle

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Current: 5.5 N-2: 5.3 Avg cadence: Every 25 days

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

Community Notes

Silent install note • May 3, 2026
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Silent install tip

For the Comcast Business VoiceEdge Softphone, extract SOFTPHONE.MSI from the setup EXE’s temporary folder (%TEMP%) after running it once, then deploy silently with msiexec /i SOFTPHONE.MSI /qn via enterprise tools like KACE, scheduling for logoff or startup to avoid prompts requiring closure of apps like Outlook or Chrome.

Release Notes & Updates

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Avg cadence:
Updates • 0

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Also known as

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Softphone

Packaging Notes

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Requires .NET Framework 4.7; installs C++ 2010 and 2015 redistributables as prerequisites

Notes

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Compatible with Windows 7 SP1 and later; designed for freelancers, small businesses, and home users; licensing based on simultaneous calls rather than per user.