New release of HTML5 softphone

Posted on December 7, 2016

VoIP SIP SDK team is happy to present the new release of HTML5 SIP softphone. This solution allows to make VOIP calls directly from the web page and didn’t require to set up any software. Please download our latest version … READ MORE

New release of SIP SDK for iPhone

Posted on September 27, 2016

ABTO Software’s VoIP SIP SDK team is happy to present you with a new release of our SIP SDK for iOS with NAT64 support. It allows to make calls from IPv6 network to IPv4 one, and vice versa. Please download … READ MORE

Update VoIP SIP SDK for Windows

Posted on August 19, 2016

Please download our latest VoIP SIP SDK for Windows Change log: – Fixed potential crash on stop sending RTP and closing connection – Fixed potential crash on making call without registration – Improved C# wrapper file. Added ability to create … READ MORE

Update VoIP SIP SDK for iPhone

Posted on August 18, 2016May 1, 2019

Please download our latest VoIP SIP SDK for iPhone. Change log: – IPv6 support added – Fixed bug in method answerCall no video – Improved cameras switching

Update VoIP SIP SDK for Android

Posted on August 17, 2016August 18, 2016

Please download our latest VoIP SIP SDK for Android. Change log: – Actual OpenSSL version – Fixed crash on hold video call

Happy Easter!

Posted on April 5, 2015July 6, 2015

Dear partners and visitors, We are wishing you a very Happy Easter that is filled with plenty of love and happiness. Thank you for your cooperation in improving and development of our VoIP products. We hope to continue supporting your … READ MORE

Merry Christmas and Happy New Year!

Posted on December 26, 2014January 6, 2015

Dear colleagues and partners, With sincere thanks and much appreciation for your great work and commitment, we wish you and your families all the joys of this holiday season. May all your wishes and dreams come true and may you … READ MORE

Try sip softphone in Google Play

Posted on August 29, 2014July 6, 2015

We are happy and proud to invite you to try our updated sample sip softphone for Android. The main updates are better video and secure connection support. The latest softphone version is available at Google Play. Try SIP softphone in … READ MORE

SIP DLL SDK

Posted on August 13, 2014January 6, 2015

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

SIP ZRTP client

Posted on August 13, 2014May 3, 2019

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

News