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Cannon VoIP vs PortSIP PBX

Both stand on business phone systems. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Cannon VoIP

Paid AndroidiPhoneMac+2

Cannon VoIP combines business communications and CRM functions in one cloud portal. Its Core plan starts at $34 a month per extension, with additional services available as separate plans or add-ons.

Visit Cannon VoIP

PortSIP PBX

Free plan AndroidAPIiPhone+4

Choose PortSIP PBX if you need a broad communications platform with a free edition and multiple deployment options. The free edition has firm extension and simultaneous-call caps, while license prices require a quote, so organizations planning beyond those limits should review licensing with PortSIP.

Visit PortSIP PBX

The facts

Cannon VoIPPortSIP PBX
Free planNoYes
Open sourceNot publishedNot published
Runs onAndroid, iPhone, Mac, Web, WindowsAndroid, API, iPhone, Linux, Self-hosted, Web, Windows
Lowest paid planCloud eFax: $10 a monthFree or on request
Plans published65
MakerCannon VoIPNot published
Websitecannonvoip.comportsip.com
On business phone systems#127 of 174#3 of 174

Cannon VoIP: what it does well

  • Combines phone, messaging, meetings, fax, and CRM
  • Supports Android, iOS, macOS, web, and Windows
  • Includes custom routing and auto attendant
  • Searchable transcripts for recorded calls
  • Offers numerous CRM and service integrations

What to know first

  • No free plan
  • Core plan requires two extensions
  • International calls use destination pricing
  • Heavy usage can add a $5 surcharge

PortSIP PBX: what it does well

  • Free Edition includes all features.
  • Custom call routing and an auto attendant are included.
  • Contact center tools include skill-based routing and live wallboards.
  • Deploy on premises, in a data center, or on major cloud platforms.
  • Microsoft 365 integration includes provisioning, SSO, and contact synchronization.

What to know first

  • Free Edition is limited to 3 extensions and 2 simultaneous calls.
  • Licensed Edition prices are available by quote only.
  • Linux PBX installation uses Docker and lists Debian and Ubuntu.

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