• WANT TO CREATE YOUR OWN SOFTPHONE?

  • VOIP SIP SDK FOR CUSTOM SOFTPHONES AND ADDING VOIP FEATURES

  • MAIN BENEFITS OF ABTO SOFTWARE'S VOIP SIP SDK:

    HIGH QUALITY OF SOFTPHONE SOLUTIONS, TECHNICAL CONSULTING, AND CUSTOMER SERVICE

  • MAIN BENEFITS OF ABTO SOFTWARE'S VOIP SIP SDK:

    NO LIMITATION (NUMBER OF PRODUCTS, CHANELS, AND USERS IS NOT LIMITED)

  • MAIN BENEFITS OF ABTO SOFTWARE'S VOIP SIP SDK:

    MULTIPLE PLATFORMS (WINDOW, WINDOWS MOBILE, ANDROID, IOS)

  • MAIN BENEFITS OF ABTO SOFTWARE'S VOIP SIP SDK:

    CUSTOMIZATION (DIALERS, CALL CENTERS, WEBPHONES, IVRS, INTERCOM SOLUTIONS ETC).

Try now

Feedback

New softphone in Google Play

We are happy and proud to invite you to try our Read more

SIP DLL SDK

We often receive the following questions about our Read more

SIP ZRTP client

ABTO Software's VoIP SIP SDK is proud to present a new Read more

Updated trial RTP SDK

Download the latest trial RTP SDK for Windows Read more

Early media use

You can use VoIP SIP SDK to make a custom Read more

STUN use

We are receiving many questions about STUN Read more

VoIP SIP SDK for custom softphones and adding VoIP features

Standard VoIP SIP SDK

standart voip sip sdk softphone VoIP SIP SDK provides capabilities to build a custom softphone  with voice calls or add VoIP features to your software. READ MORE

 

Video VoIP SIP SDK

Video VoIP SIP SDK for Windows SIP SDK provides video stream support on the basis of H.263 and H.264 codecs.  READ MORE

RTP SDK

RTP SDK RTP SDK for sending and receiving sound by RTP protocol.  READ MORE

VoIP SIP SDK for Android

VoIP SIP SDK for Android SIP SDK supports voice and video calls and works on devices with Android 2.3+ and 4.x. READ MORE

VoIP SIP SDK for iPhone

VoIP SIP SDK for iPhone SIP SDK supports voice and video calls and works on iOS5, 6 and 7. READ MORE

SDK for Windows CE

VoIP SIP SDK for Windows CE VoIP SIP SDK for Windows Mobile and Windows CE. READ MORE

Flash SIP Softphone

flash sip client Custom flash softphone with video support. READ MORE

VoIP SIP Server

VoIP SIP Server Customizable VoIP SIP Server on the basis of VoIP SIP SDK. READ MORE

T38 Modem

t38 modem Fax/voice modem pool combined with SIP endpoint. READ MORE


Questions?

Development Environments:

  • Visual C++ / C++ / C# .NET
  • VB.NET / VB 6.0
  • Java
  • JavaScript / HTML / HTML5
  • Flash
  • Borland Delphi

Company details:

ABTO Software is the only owner and distributor of VoIP SIP SDK. The company also develops other products and offers software development services. Read more on www.abtosoftware.com.