The Best 29 Slingshot VoIP Alternatives

  • Telzio icon

    Telzio

    Telzio is the most flexible and easy-to-use business phone system in the world, with full PBX features, mobile integration, and web management capabilities.

    Commercial

  • Line2 icon

    Line2

    Line2 is a VoIP phone service that lets you call & text from a separate phone number via WiFi or 3G/4G/LTE. At a small premium, Text & call ANYONE in the US/Canada, forwarding & more. Pick any phone number.

    Commercial Mac OS X Windows Android iPhone Android Tablet iPad Kindle Fire Apple Watch

  • Grasshopper icon

    Grasshopper

    Grasshopper customers can now run their businesses from anywhere with the new Grasshopper iPhone app: * Make calls showing your Grasshopper caller ID * Check...

    Free iPhone Web

  • JustCall icon

    JustCall

    Justcall helps businesses to get multiple virtual numbers in 58 countries and let you make, receive, track and record calls from web or your mobile phone. Features like...

    Commercial Mac OS X Windows Android iPhone Web

  • RingCentral icon

    RingCentral

    RingCentral delivers high quality, reliability and value that's expected by enterprise businesses through RingCentral Office, an all-inclusive cloud phone system...

    Commercial Mac OS X Windows Android iPhone

  • Phonebooth icon

    Phonebooth

    Phonebooth is a web-based phone system that routes your calls to any landline or mobile phone number you choose. Users receive a free local phone number to give out to...

    Commercial Web

  • Sideline icon

    Sideline

    Sideline is the work number for your smartphone. It uses your existing carrier network so that 2nd number works wherever you do.

    Free Android iPhone

  • Truly Wireless icon

    Truly Wireless

    Truly Wireless is the most advanced, feature packed and reliable mobile business phone system available.

    Commercial Mac OS X Windows Android iPhone Web

  • Anello Voice icon

    Anello Voice

    Anello Voice offers telecom services. With Anello Voice, you won't be tethered to a traditional landline phone. Wherever you go, your phone number follows.

    Commercial Web

  • YouMail icon

    YouMail

    YouMail turns visual voicemail into a personal assistant for handling all your missed calls. And it's FREE! Join millions of other happy users. KEY FEATURES ...

    Freemium Android iPhone Android Tablet iPad Web

  • Zaplee icon

    Zaplee

    Zaplee is a global cloud-based PBX phone system. Our system works with Skype, Google Voice, SIP, VOIP, landline and mobile phones. We can provide phone numbers in over...

    Commercial Mac OS X Windows Android iPhone Blackberry

  • Ringio icon

    Ringio

    Ringio is a CRM-friendly phone solution for businesses that love their customers and want to improve the quality of their real-time interactions.

    Commercial Mac OS X Windows Android iPhone Web

  • RingMe.io icon

    RingMe.io

    Ringme.io is here to revolutionize your definition of business communication. RingMe.io provides an all-inclusive package of cloud based business VoIP phone services. ...

    Commercial Web

  • Cloud Telephony icon

    Cloud Telephony

    The main purpose of cloud telephony is connecting with the customers for providing your services support. IVR is the software which is used for the cloud telephony.

    Commercial Web