VoIP SIP SDK

12/09/2024

New Update VOIP SIP SDK for Android is out! -
- various bug and crash fixes
- SDK target changed to API level 34
- updated Java and Kotlin example apps build files to support Android Studios that capable to build Android 14 (API level 34) apps.
Try new features by downloading our latest update

12/30/2019

Download the latest update of VoIP SIP SDK for Android:
https://voipsipsdk.com/products/voip-sip-sdk-for-android/download

Here you are welcome to download the latest version of VoIP SIP SDK for Windows.

12/30/2019

Download the latest update of VoIP SIP SDK for iOS:
https://voipsipsdk.com/products/voip-sip-sdk-for-iphone/download

Here you are welcome to download the latest version of VoIP SIP SDK for Windows.

12/30/2019

Download the latest update of VoIP SIP SDK for Windows:

Here you are welcome to download the latest version of VoIP SIP SDK for Windows.

12/27/2019

Abto VoIP team often receives a lot of questions regarding our VoIP SIP SDK for Windows:
- Is it implemented as managed or native dll?
- How to integrate SDK into the user’s own application?
- How to deploy an SDK-based solution to the user’s computer?

If it resonates with you, please check the latest article on our website:

Windows VOIP SIP SDK - managed or native dll?

11/13/2019

Download the latest update of VoIP SIP SDK for Windows:

Here you are welcome to download the latest version of VoIP SIP SDK for Windows.

11/13/2019

Download the latest VoIP SIP SDK for iOS:

Here you can request a link to download demo version of VoIP SIP SDK for iPhone.

11/13/2019

Download the latest update of VoIP SIP SDK for Android:

Here you can request a link to download our demo app for Android. Our license for VoIP SIP SDK for Android will allow you to modify the app.

06/07/2019

Ensure that your app is ready for the 64-bit requirement!

Starting from August 2019, all apps published on Google Play will need to support 64-bit architectures. Adding a 64-bit version provides performance improvements, makes way for future innovation, and sets you up for devices with 64-bit-only hardware.

We already implemented all the necessary changes in our VOIP SIP SDK for Android – please download the important update of SDK for Android here:

Here you can request a link to download our demo app for Android. Our license for VoIP SIP SDK for Android will allow you to modify the app.

03/29/2019

Please download our latest VoIP SIP SDK for Android:
http://voipsipsdk.com/products/voip-sip-sdk-for-android/download

Change log:
– Fixed potentials crash when app sends many DTMF tones;
– Added new method ‘phone.getConfig.setLogLevel';
– Added new method ‘attendedTransferCall(int callId, int dstCallId)';
– Fixed sending RTP frames when app puts call on hold;
– Fixed crash when app receives incoming call and network lost;
– Fixed bug with sending outgoing call when enabled TLS and ‘sip’ scheme;
– Redesigned video implementation.

Here you can request a link to download our demo app for Android. Our license for VoIP SIP SDK for Android will allow you to modify the app.

03/29/2019

Please download our latest VoIP SIP SDK for iPhone:
http://voipsipsdk.com/products/voip-sip-sdk-for-iphone/download

Change log:
– Fixed sending STUN requests;
– Added ‘dynamic ‘example app;
– Redesigned sending SIP responses back to server instead of direct between clients;
– Modified raising event onCallHeld(x, NO) – if sending RTP streams restores;
– Fixed sending RTP frames whn app puts call on hold;
– Fixed handling ACK with SDP.

Here you can request a link to download demo version of VoIP SIP SDK for iPhone.