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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    CallHippo

    Score8.2 out of 10
    N/ACallHippo is an on-demand Voice-over-Internet Protocol (VoIP) based Virtual Phone System. CallHippo allows startups and businesses to get local phone numbers instantly from over 50+ countries around the world. The vendor says the easy to use interface and robust backend architecture enables businesses to set up their phone system within less than 3 minutes. The CallHippo platform allows deployment of a flexible telephony network, wherever an…N/A

    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
    Pricing
    CallHippoKamailio SIP Server
    Editions & Modules
    No answers on this topic
    No answers on this topic
    Offerings
    Pricing Offerings
    CallHippoKamailio SIP Server
    Free Trial
    YesNo
    Free/Freemium Version
    YesNo
    Premium Consulting/Integration Services
    NoNo
    Entry-level Setup Fee$5 Per NumberNo setup fee
    Additional Details——
    More Pricing Information
    Features
    CallHippoKamailio SIP Server
    Call Management
    Comparison of Call Management features of CallHippo and Kamailio SIP Server
    Feature
    CallHippo
    6.8
    5 Ratings
    19% below category average
    Kamailio SIP Server
    8.4
    1 Ratings
    2% above category average
    Answering rules7.15 Ratings9.01 Ratings
    Call recording6.15 Ratings8.01 Ratings
    Call park7.35 Ratings9.01 Ratings
    Call screening00 Ratings8.01 Ratings
    Message alerts00 Ratings8.01 Ratings
    Mobile apps
    Comparison of Mobile apps features of CallHippo and Kamailio SIP Server
    Feature
    CallHippo
    5.4
    5 Ratings
    37% below category average
    Kamailio SIP Server
    -
    Ratings
    Mobile app for Android5.45 Ratings00 Ratings
    Cloud PBX
    Comparison of Cloud PBX features of CallHippo and Kamailio SIP Server
    Feature
    CallHippo
    -
    Ratings
    Kamailio SIP Server
    8.0
    1 Ratings
    1% above category average
    Hosted PBX00 Ratings8.01 Ratings
    Multi-level Interactive Voice Response (IVR)00 Ratings9.01 Ratings
    User templates00 Ratings7.01 Ratings
    Call reports00 Ratings8.01 Ratings
    Directory of employee names00 Ratings8.01 Ratings
    VoIP system collaboration
    Comparison of VoIP system collaboration features of CallHippo and Kamailio SIP Server
    Feature
    CallHippo
    -
    Ratings
    Kamailio SIP Server
    7.5
    1 Ratings
    6% below category average
    Video conferencing00 Ratings7.01 Ratings
    Audio conferencing00 Ratings8.01 Ratings
    Video screen sharing00 Ratings7.01 Ratings
    Instant messaging00 Ratings8.01 Ratings
    Best Alternatives
    CallHippoKamailio SIP Server
    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
    CallHippoKamailio SIP Server
    Likelihood to Recommend
    5.6
    (5 ratings)
    9.0
    (1 ratings)
    Likelihood to Renew
    8.9
    (2 ratings)
    -
    (0 ratings)
    Support Rating
    1.0
    (1 ratings)
    -
    (0 ratings)
    User Testimonials
    CallHippoKamailio SIP Server
    Likelihood to Recommend
    CallHippo
    Calling abroad to international clients, while we use international number then response rate increases. Also, the client also prefers their country's number to respond. The pricing part is less appropriate. I believe they should be charged only for calling services. The name is also not suitable like what is Hippo means in the name. The person who uses this service is a Hippo?
    Incentivized
    Read full review
    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
    Pros
    CallHippo
    • No positive sides at all.
    Read full review
    Open Source
    • Proxy server.
    • Security Firewall.
    • SIP to PSTN gateway.
    Incentivized
    Read full review
    Cons
    CallHippo
    • Waiting for iOS mobile app
    Incentivized
    Read full review
    Open Source
    • Interportability
    • SIP conversions.
    Incentivized
    Read full review
    Likelihood to Renew
    CallHippo
    It's the need of my team to perform well and it's increasing the possibility of getting more business. Clients also have more trust while responding when they saw their country's number rather than any other country's unknown number.
    Incentivized
    Read full review
    Open Source
    No answers on this topic
    Support Rating
    CallHippo
    Their support is built around trying to prove why the customer (who is not getting the service promised at the price promised) is wrong. For that they pass with flying colors. For actually supporting the user though they are horrible. They come up with creative scenarios to overcharge the credit card while not giving a service.
    Read full review
    Open Source
    No answers on this topic
    Alternatives Considered
    CallHippo
    All of them. This seemed to be the best until they got us down.
    Read full review
    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
    Return on Investment
    CallHippo
    • Call to all countries supported making it easy to connect.
    • Last resort to make calls
    • Easy to use
    Incentivized
    Read full review
    Open Source
    • As its open source ROI is excellent.
    Incentivized
    Read full review
    ScreenShots