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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    3CX

    Score7.9 out of 10
    N/ACyprus based company 3CX offers an IP PBX phone system.

    $1.08

    per user/per month

    Slack

    Score9 out of 10
    N/ASlack is a group messaging or team collaboration app that aims to simplify communication for businesses. Features include open discussions, private groups, and direct messaging, as well as deep contextual search and message archiving, and file sharing. Slack integrates with a number of other tools, such as MailChimp, Dropbox, and Google Drive. Slack was acquired by Salesforce in December 2020. The product is free to use, and also has paid plans with more features and greater controls. The…

    $8.75

    per month per user

    Pricing
    3CXSlack
    Editions & Modules
    Pro
    $1.08
    per user/per month
    Enterprise
    $1.31
    per user/per month
    Standard
    Free
    Free
    $0
    Pro
    $7.25*
    per month per user
    Business+
    $12.50*
    per month per user
    Enterprise
    Contact Sales
    Offerings
    Pricing Offerings
    3CXSlack
    Free Trial
    YesYes
    Free/Freemium Version
    YesYes
    Premium Consulting/Integration Services
    YesNo
    Entry-level Setup FeeOptionalNo setup fee
    Additional DetailsPrice displayed is based on 25 users. 3CX pricing is based on the number of simultaneous calls your business requires or in other words, how many calls your system needs to support at once. Unlike other PBX vendors there is no per extension cost.*Per active user, per month, when paying once a year. Pro is $8.75 USD per active user when paying month to month. Business+ is $15.00 USD per active user when paying month to month.
    More Pricing Information
    Community Pulse
    3CXSlack
    Considered Both Products
    3CX
    Chose 3CX
    From both functionality and cost perspective, we were not happy with RingCentral and AT&T. However, they might have improved in recent years.
    Incentivized
    Chose 3CX
    Other phone systems we evaluated were more traditional PBX systems using proprietary hardware servers. We chose 3CX for the flexibility and self-service capabilities. For us this meant being able to replace an aging phone system in one move, then bringing remote locations into …
    Incentivized
    Salesforce
    No answer on this topic
    Key User Insights
    Would buy again
    90%
    Would buy again
    9 Answers
    97%
    Would buy again
    503 Answers
    Delivers good value for the price
    88%
    Delivers good value for the price
    7 Answers
    99%
    Delivers good value for the price
    426 Answers
    Happy with the feature set
    100%
    Happy with the feature set
    10 Answers
    98%
    Happy with the feature set
    510 Answers
    Lived up to sales and marketing promises
    83%
    Lived up to sales and marketing promises
    5 Answers
    98%
    Lived up to sales and marketing promises
    295 Answers
    Implementation went as expected
    100%
    Implementation went as expected
    9 Answers
    99%
    Implementation went as expected
    330 Answers
    Features
    3CXSlack
    Project Management
    Comparison of Project Management features of 3CX and Slack
    Feature
    3CX
    -
    Ratings
    Slack
    7.9
    628 Ratings
    2% above category average
    Task Management00 Ratings7.6430 Ratings
    Gantt Charts00 Ratings6.961 Ratings
    Scheduling00 Ratings7.8363 Ratings
    Workflow Automation00 Ratings8.0396 Ratings
    Mobile Access00 Ratings9.4601 Ratings
    Search00 Ratings8.2608 Ratings
    Visual planning tools00 Ratings7.3275 Ratings
    Communication
    Comparison of Communication features of 3CX and Slack
    Feature
    3CX
    -
    Ratings
    Slack
    8.7
    636 Ratings
    8% above category average
    Chat00 Ratings9.6635 Ratings
    Notifications00 Ratings8.7632 Ratings
    Discussions00 Ratings9.2620 Ratings
    Surveys00 Ratings8.1413 Ratings
    Internal knowledgebase00 Ratings7.8412 Ratings
    Integrates with GoToMeeting00 Ratings8.9110 Ratings
    Integrates with Gmail and Google Hangouts00 Ratings8.7182 Ratings
    Integrates with Outlook00 Ratings8.9120 Ratings
    File Sharing & Management
    Comparison of File Sharing & Management features of 3CX and Slack
    Feature
    3CX
    -
    Ratings
    Slack
    8.4
    603 Ratings
    4% above category average
    Versioning00 Ratings8.2326 Ratings
    Video files00 Ratings8.2541 Ratings
    Audio files00 Ratings8.4527 Ratings
    Document collaboration00 Ratings7.9429 Ratings
    Access control00 Ratings8.3411 Ratings
    Advanced security features00 Ratings8.3362 Ratings
    Integrates with Google Drive00 Ratings9.0211 Ratings
    Device sync00 Ratings9.0455 Ratings
    Best Alternatives
    3CXSlack
    Small Businesses
    Sangoma Asterisk
    Score8.7 out of 10
    Flock
    Score9.5 out of 10
    Medium-sized Companies
    Sangoma Asterisk
    Score8.7 out of 10
    Troop Messenger
    Score9.8 out of 10
    Enterprises
    Sangoma Asterisk
    Score8.7 out of 10
    Cisco Business Edition 7000 (discontinued)
    Score9 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    3CXSlack
    Likelihood to Recommend
    7.4
    (14 ratings)
    9.1
    (639 ratings)
    Likelihood to Renew
    -
    (0 ratings)
    10.0
    (25 ratings)
    Usability
    -
    (0 ratings)
    9.0
    (255 ratings)
    Availability
    -
    (0 ratings)
    10.0
    (2 ratings)
    Performance
    -
    (0 ratings)
    10.0
    (2 ratings)
    Support Rating
    5.4
    (2 ratings)
    10.0
    (68 ratings)
    Implementation Rating
    -
    (0 ratings)
    8.9
    (5 ratings)
    Configurability
    -
    (0 ratings)
    10.0
    (2 ratings)
    Contract Terms and Pricing Model
    -
    (0 ratings)
    10.0
    (1 ratings)
    Ease of integration
    -
    (0 ratings)
    9.7
    (2 ratings)
    Product Scalability
    -
    (0 ratings)
    10.0
    (1 ratings)
    Professional Services
    -
    (0 ratings)
    10.0
    (1 ratings)
    Vendor post-sale
    -
    (0 ratings)
    10.0
    (1 ratings)
    Vendor pre-sale
    -
    (0 ratings)
    10.0
    (1 ratings)
    User Testimonials
    3CXSlack
    Likelihood to Recommend
    3CX
    In many scenarios decision is driven by budget and compared to other solutions at the time of purchase [3CX] was simply the cheapest solution for what it has to offer. If you are looking for integrations, extensibility, and advanced functionalities, this might not be a solution for you. At the time of use (and this may have changed by now), there was a lack of APIs, CLI commands, and similar so nothing could be automated with the system. There are ways of importing data through CSV but automation would solve us so much time and support calls if we were able to connect with other systems.
    Incentivized
    Read full review
    Salesforce
    Slack is ideal for Scrum and agile teams that need continuous communication during sprint planning, daily stand-ups, backlog refinement, testing, and retrospectives. Slack is well-suited for maintaining team knowledge through searchable conversations and dedicated channels, where experienced team members help onboard new QA analysts.
    Read full review
    Pros
    3CX
    • Simplicity: Using a single 3CX interface we can manage every phone and extension used throughout our company.
    • Flexibility: There are a wide variety of options to configure each extension and phone. Changing anything after the hardware is deployed is very easy.
    • Portability: Phones with 3CX can be easily moved or repurposed within an office or at remote locations, including users' homes. The mobile app allows users to use their office extension anywhere without exposing their cell number.
    Incentivized
    Read full review
    Salesforce
    • Customer issues: Threads feature allows us to group a particular issue in a single thread and discuss within that thread. I can use the thread link to embed in JIRA ticket for tracking progress in JIRA (which is our details engineering tracking system).
    • Ability to add folder to Slack channel helps keep important information, documents easily accessible. e.g., we use this to keep a "ramp up" folder that can be used by any new joiner.
    • Global search is effective when I forget which group a particular message was in.
    Read full review
    Cons
    3CX
    • I would like to be able to see direct-dial numbers on the handsets. Currently that is not possible but that would be a nice feature.
    • You need an SBC per location, which can be a point of failure.
    • You also need a server that might get disconnected, which is another point of failure.
    Incentivized
    Read full review
    Salesforce
    • Would love a better integration with GitHub. For example, notifications when your PR is updated, when review is requested, @-mention in comments, etc.
    • Improved "Later" tab, for example the ability to create to-do lists or making the "Later" tab into a more powerful to-do list (annotate items with notes)
    • More powerful integrations, e.g. Google Calendar could render a calendar view within Slack, rather than sending the daily schedule
    Incentivized
    Read full review
    Likelihood to Renew
    3CX
    No answers on this topic
    Salesforce
    To be more transparent, I give 10 because Slack serves our collaboration needs. It provide us a good platform for team communication relaying important update within the company, it has even mobile app where you can install in your phone to monitor any updates within that team that needs your immediate attention and intervention.
    Incentivized
    Read full review
    Usability
    3CX
    No answers on this topic
    Salesforce
    Slack has good usability. Devs that are not familiar with the platform are able to jump into conversations and start sharing code and links within just minutes. Non developers are also able to understand the layout such as the Project Managers that are keeping the projects on track. We have not seen any tickets where employees are having trouble understanding Slack.
    Incentivized
    Read full review
    Reliability and Availability
    3CX
    No answers on this topic
    Salesforce
    Yes, the app works 24/7. I don't even recall having any period that we could not use since the implementation. Even the maintenance periods are barely noticeable and our work is not impacted by it when it happens.
    Incentivized
    Read full review
    Performance
    3CX
    No answers on this topic
    Salesforce
    Slack is a soft app, we don't have many issues with it. I recall one or two people complaining about something during our usage period, but I didn't have a bad experience. When the app is slow, usually the problem is with my computer or my internet. The app works just fine.
    Incentivized
    Read full review
    Support Rating
    3CX
    The 3CX Phone System is only a five because while they provide set-up/how-to/Q and A documents to help your district or company get started, they do not offer support for free. The documents provided, though, are good enough for you to get you up and running. We also found a good source of help through a sip trunk provider, which was a 3CX reseller provider.
    Incentivized
    Read full review
    Salesforce
    Whenever I've had to troubleshoot an issue with Slack (which, to be honest, has not happened very often), their online documentation has been easy to locate, easy to understand, and effective in resolving my issue. Slack's ever-growing popularity also means that there's a large community of practice out there that can be depended upon.
    Incentivized
    Read full review
    Implementation Rating
    3CX
    No answers on this topic
    Salesforce
    I was not part of the implementation team, but I recall being 100% happy and excited to learn and use a new tool. I'm still am to be honest.
    Incentivized
    Read full review
    Alternatives Considered
    3CX
    The main differences between 8x8, Inc. and 3CX is pricing and ease of use in my opinion. The 3CX system uses annual based pricing plans based on of simultaneous calls your company needs, not the number of extensions/users and offers a free plan. 8x8, Inc. charges per extension with different plans. We currently have 19 extensions so the 3CX system makes more sense for us, however, if your company only has a few extensions you may want to throughly consider both options. In my experience, it was difficult to add new extensions and phones with 8x8 because at least at that time we had 8x8 I could not add anything on the web admin. I had to call a sales rep which took a lot more time. Also, if you didn't purchase a phone and/or headset directly from 8x8 at a usually higher price than Amazon for example then you would have to spend anywhere from 30 minutes to hours on the phone with 8x8 tech support to program the phone to work with the 8x8 system so adding a new extension could turn into a long ordeal. I can easily add new extensions on 3CX directly in the web cpanel. Granted, if you are actually adding a new phone number you would need to purchase that number from a company like ATT first before adding it to 3CX. The difference between a phone number and an extension would be a phone number allows a customer to call in directly using that number. The extension would require the customer to call the main business number then be transferred to the extension. 3CX provides a list of supported phone models on their website
    Incentivized
    Read full review
    Salesforce
    I like Slack better than ClickUp, because I would spend 30-60 minutes a day updating my ClickUp tasks. The way ClickUp was used was very micromanaging. I billed by the hour, so I was willing to put in the time to alert the boss what tasks I was working on.
    One of my jobs used Hive - I mostly just ran it in the background in case anyone messaged me. I did not use it often.
    Incentivized
    Read full review
    Return on Investment
    3CX
    • 3CX has a lot to offer for a very low cost as its business model is based on simultaneous calls and not per device. It's very cost effective and very affordable.
    • As the 3CX server does not require a high-performance server to run, with the Public Cloud option, it might allow even further savings.
    Incentivized
    Read full review
    Salesforce
    • Slack has been incredibly helpful in connecting various tech apps and ecosystems, creating a more streamlined and responsive process.
    • Slack has made it significantly easier to communicate with our team members across multiple time zones, creating a more engaging environment for our all-remote team.
    Incentivized
    Read full review
    ScreenShots

    3CX Screenshots

    Screenshot of Video ConferencingScreenshot of Advanced Contact Center ReportingScreenshot of Management DashboardScreenshot of Live ChatScreenshot of 3CX AppScreenshot of See the Status of Your Colleagues