We often receive the following questions about our ABTO Software’s VoIP SIP SDK for Windows: is it implemented as native SIP DLL SDK or as ActiveX (COM) object. how to integrate SDK into own application. The answer is that VoIP … READ MORE

ABTO Software’s VoIP SIP SDK is proud to present a new feature – ZRTP support for mobile platforms: iOS and Android.Using our SDK you are able to build custom sip zrtp client for iOS and Android. Currently realization allows ZRTP … READ MORE

You can use VoIP SIP SDK to make a custom intercom. Obviously you can make a connection to communicate before you open the door. However, one of the basic features of this solution is to be able to see the … READ MORE

We are receiving many questions about STUN use. STUN means Session Traversal Utilities for  NAT (Network Address Translator). When using STUN is a good idea: If you do not receive video and audio because remote side can not send media. … READ MORE

Dear customers and visitors of our website, Congratulations and Happy Easter Holidays! ABTO Software’s VoIP SIP SDK team

You can find the latest sample softphone app with background mode, sRTP support, and other improvements on App Store. To request the latest trial and purchase full version of VoIP SIP SDK for iPhone, please contact us.

ABTO Software’s VoIP SIP SDK team wishes our current and potential clients Merry Christmas and a very Happy New 2014 Year!!! We have special seasonal discounts. Contact us to find out more!

ABTO Software prepared a demo video and published it on YouTube to demonstrate how to install and use our VoIP SIP Server for Windows. ABTO Software’s VoIP SIP Server is a simple SIP server with user-friendly web interface, perfect for local networks and testing purposes! You can find … READ MORE