Natterbox Alternatives

    Natterbox is described as 'specialises in cloud-based telephony for Salesforce - setting the trend in how businesses use voice to operate and communicate!'. There are five alternatives to Natterbox for a variety of platforms, including Windows, iPhone, Mac, iPad and Linux. The best alternative is Asterisk, which is both free and Open Source. Other great apps like Natterbox are RingCentral (Paid), miniSIPServer (Paid), Slingshot VoIP (Paid) and 8x8 Virtual Office (Free).

    The list of alternatives was last updated Feb 17, 2021

    • Asterisk is free software that transforms a computer into a communication server. Asterisk lets you build applications like PBX, VoIP gateway, IVR and ACD.
      • Free • Open Source
      • Mac
      • Windows
      • Linux
    • RingCentral Office integrates phone, video, meetings, and messaging in one reliable, easy-to-use solution.
      • Mac
      • Windows
      • Online
      • Android
      • iPhone
      • Software as a Service (SaaS)


    • You will be able to setup your own VOIP system in ONE HOUR. miniSIPServer can run on Windows, Linux and even Raspberry Pi. We can also run it on kinds of virtual machine systems, such as Hyper-V, VMWare, KVM, Xen.
      • Windows
      • Linux
      • Raspberry Pi
    • Cloud communications service provider that offers Business VoIP and Virtual PBX solutions to small and medium sized organizations.
      • Mac
      • Windows
      • Online
      • Android
      • iPhone
      • iPad
    • Use your iPhone, iPad or iPod touch to make and receive calls using your 8x8 Virtual Office phone service. Now your 8x8 business phone extension can be truly mobile!.