Usefull update: VOIP SIP SDK for Android

Posted on February 23, 2026February 25, 2026

Change log:

Added automatic re-REGISTER on network change
Added automatic re-INVITE for active calls on network change (for accounts with registration)
Stability fixes

Update build: VOIP SIP SDK for Android

Posted on October 16, 2025October 16, 2025

Update build: VOIP SIP SDK for Android

Change log:

- fixed missing local audio issue
- fixed reply back mechanism, use proper transport in dialogs and handles properly DNS SRV configuration
- removed requirement for SCHEDULE_EXACT_ALARM permission, now optional
- removed requirement for BLUETOOTH_CONNECT permission, now optional
- fixed openSL audio driver usage by default
- stability fixes

Posted on August 29, 2025August 29, 2025

Change log:

- Updated iOS SDK to 20250805
- Updated Android SDK to 20250822
- Changed Flutter min version to 3.0.0
- Removed deprecated FlutterApplication class on Android
- Set AbtoApplication as the default application on Android
- Added 16k alignment on Android
- Minimum supported version: Android 5.0
- Transitioned to new C++ library libc++_shared.so instead of libstlport_shared.so
- Updated OpenSSL to 1.1.1w (Android & iOS)
- Updated srtplib to 2.5.0 (Android)
- Updated libSRTP to 2.5.0 (iOS)
- Android API target level set to 35
- Internal engine improvements: fixed deadlocks, memory leaks, flow inconsistencies
- Updated Android sample projects to target API level 35
- Added support for TLS 1.3 on iOS (disabled by default)
- Added option on iOS to change secure transport encryption type via socketEncryptionOptions
- Added option in iOS updateCall method to use SIP UPDATE instead of re-INVITE
- Partial rebuild on iOS using latest Xcode for improved compatibility

Posted on August 25, 2025August 29, 2025

Hot Release Android SDK change log:

- fixed video calls(regression in release 2025.07.29)
- added support for TLS 1.3, new methods setSocketEncryption and getSocketEncryption, and deprecate 2 methods getTLSMethod and setTLSMethod
- added functionality for client side verification, new methods setTLSVerifyClient, setTLSClientCert and setTLSClientPrivKey

Posted on July 30, 2025February 25, 2026

Android SDK change log:

- 16k alignment
- minimum supported Android 5.0
- transition to new C++ library libc++_shared.so instead of libstlport_shared.so
- use newer OpenSSL 1.1.1w
- updated srtplib to 2.5.0
- android API target level set to 35
- internal engine update to target deadlocks, memory leaks and flow incinsistencies
- Updated sample projects to target API level 35

Posted on January 6, 2025January 9, 2025

Try new features by downloading our latest update of VOIP SIP SDK for Flutter. Change log:

Posted on November 7, 2024January 3, 2025

Android SDK change log:

- changed username to SIP URI in receiver argument of onTextMessageReceived callback
- disabled code which removes auto dial DTMF suffix
- SDK target changed to API level 34
- added RX and TX byte counter to AbtoPhoneMediaQuality
- added method to specify custom REGISTER headers
- fixed H264 full HD (1920x1080) video capture
- added POST_NOTIFICATIONS permission to example apps
- added FOREGROUND_SERVICE_PHONE_CALL permission and marked service with phoneCall foreground type in example apps
- updated Java example apps build files to support Android Studios that capable to build Android 14 (API level 34) apps
- updated Kotlin example apps build files to support Android Studios that capable to build Android 14 (API level 34) apps