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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Kamailio SIP Server

    Score9 out of 10
    N/AThe Kamailio SIP Server, formerly known as OpenSER or SER, is an open source VoIP and communications platform.N/A

    KrispCall

    Score7.3 out of 10
    N/AKrispCall is a communication platform for growing business that integrates with a CRM, offering access to phone numbers in over 100 countries. KrispCall includes a Power Dialer for sales teams, enabling lead connections, while Call Coaching allows managers to provide real-time guidance, optimizing every interaction for success. The Bulk SMS feature amplifies outreach efforts, driving targeted campaigns to boost engagement and…

    $15

    per month per user

    Pricing
    Kamailio SIP ServerKrispCall
    Editions & Modules
    No answers on this topic
    Starter
    $15
    per month per user
    Advance
    $40
    per month per user
    Max
    $60
    per month per user
    Enterprise
    Custom
    Offerings
    Pricing Offerings
    Kamailio SIP ServerKrispCall
    Free Trial
    NoYes
    Free/Freemium Version
    NoNo
    Premium Consulting/Integration Services
    NoYes
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details—20% discount for annual pricing.
    More Pricing Information
    Features
    Kamailio SIP ServerKrispCall
    Cloud PBX
    Comparison of Cloud PBX features of Kamailio SIP Server and KrispCall
    Feature
    Kamailio SIP Server
    8.0
    1 Ratings
    1% above category average
    KrispCall
    8.3
    1 Ratings
    5% above category average
    Hosted PBX8.01 Ratings00 Ratings
    Multi-level Interactive Voice Response (IVR)9.01 Ratings9.01 Ratings
    User templates7.01 Ratings00 Ratings
    Call reports8.01 Ratings8.01 Ratings
    Directory of employee names8.01 Ratings8.01 Ratings
    Call Management
    Comparison of Call Management features of Kamailio SIP Server and KrispCall
    Feature
    Kamailio SIP Server
    8.4
    1 Ratings
    2% above category average
    KrispCall
    8.6
    1 Ratings
    5% above category average
    Answering rules9.01 Ratings8.01 Ratings
    Call recording8.01 Ratings9.01 Ratings
    Call park9.01 Ratings8.01 Ratings
    Call screening8.01 Ratings10.01 Ratings
    Message alerts8.01 Ratings8.01 Ratings
    VoIP system collaboration
    Comparison of VoIP system collaboration features of Kamailio SIP Server and KrispCall
    Feature
    Kamailio SIP Server
    7.5
    1 Ratings
    6% below category average
    KrispCall
    9.0
    1 Ratings
    13% above category average
    Video conferencing7.01 Ratings00 Ratings
    Audio conferencing8.01 Ratings9.01 Ratings
    Video screen sharing7.01 Ratings00 Ratings
    Instant messaging8.01 Ratings00 Ratings
    Mobile apps
    Comparison of Mobile apps features of Kamailio SIP Server and KrispCall
    Feature
    Kamailio SIP Server
    -
    Ratings
    KrispCall
    8.0
    1 Ratings
    2% above category average
    Mobile app for iOS00 Ratings8.01 Ratings
    Best Alternatives
    Kamailio SIP ServerKrispCall
    Small Businesses
    CallFire
    Score9.7 out of 10
    CallFire
    Score9.7 out of 10
    Medium-sized Companies
    Fuze
    Score8.2 out of 10
    Fuze
    Score8.2 out of 10
    Enterprises
    Cisco Unified Communications Manager (Call Manager)
    Score8.3 out of 10
    Cisco Unified Communications Manager (Call Manager)
    Score8.3 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Kamailio SIP ServerKrispCall
    Likelihood to Recommend
    9.0
    (1 ratings)
    7.0
    (1 ratings)
    User Testimonials
    Kamailio SIP ServerKrispCall
    Likelihood to Recommend
    Open Source
    Kamailio SIP Server is very well suited if you want to secure your main servers; it can perfectly act as a proxy server and a gateway to your main server. It also does load balancing and call transfers easily based on the configurations done.
    Incentivized
    Read full review
    KrispCall
    It's well suited for sales and support environments where you need to give live coaching or real time feedback to your team members. It also helps when you have to take some strategic decisions, specifically if you are working in. support environments to identify trends, spikes in call volume, etc, and the virtual receptionist is a great help, too when the call volume is higher. For me in sales it helps with live monitoring, auto-transcript of calls, call tagging etc.
    Incentivized
    Read full review
    Pros
    Open Source
    • Proxy server.
    • Security Firewall.
    • SIP to PSTN gateway.
    Incentivized
    Read full review
    KrispCall
    • Ability to do live monitoring of calls whenever I need to provide real time feedback to my team members as it also ensures smooth interaction
    • Liked the option of auto-transcription whenever I am in a hurry and need just basic transcript of what happened on the call
    • Call Analytics is also great for you to help identify trends, and get some granular data points for making some strategic decisions
    Incentivized
    Read full review
    Cons
    Open Source
    • Interportability
    • SIP conversions.
    Incentivized
    Read full review
    KrispCall
    • Integration with Salesforce isn't there, which I believe every software must have these days.
    • No bulk SMS feature
    Incentivized
    Read full review
    Alternatives Considered
    Open Source
    As Kamailio SIP Server is an open source, the major impact is on cost; it's free to use compared to any other Softswitch or server in the market. You can also customize it to your need and use the features that you need, which is one of the major plus points for the Kamailio SIP Server. And one server is enough to handle thousands of calls simultaneously.
    Incentivized
    Read full review
    KrispCall
    I am not a decision maker who decides whether to buy a software or not but yes Krispcall has a lot of advantages compared to other vendors in the similar lines and one of them is it being cost efficent.
    Incentivized
    Read full review
    Return on Investment
    Open Source
    • As its open source ROI is excellent.
    Incentivized
    Read full review
    KrispCall
    • seamless process for live feedback and monitoring
    • helpful in strategic decision making
    • reduce the burden of listening to the calls, as at times auto-transcript does the job for you
    Incentivized
    Read full review
    ScreenShots

    KrispCall Screenshots

    Screenshot of KrispCall’s AI-driven phone system.Screenshot of a few of the CRMs that KrispCall can integrate with.Screenshot of some of the Local, International & Toll-Free Numbers available, across 100+ countries, to stay connected with clients worldwide.Screenshot of the Power Dialer, enabling users to make more calls quickly and effectively, driving better results.Screenshot of an example of the real-time call coaching, including listening, whispering, and barging,that guides and supports teams during calls.Screenshot of an example of the centralized communication channels that are organized and accessible with the Callbox, which consolidates calls, SMS, voicemails, and recordings into a single dashboard.