News

Big Update VOIP SIP SDK for Flutter

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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
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Hotfix Release: VOIP SIP SDK for Android

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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


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Update VOIP SIP SDK for Android

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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


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Update VOIP SIP SDK for iOS

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Try new features by downloading our latest update of VOIP SIP SDK for iOS.

iOS changelog:

  • updated OpenSSL to 1.1.1w
  • updated libSRTP to 2.5.0
  • added support for TLS 1.3, disabled by default
  • added option to change secure transport encryption type via socketEncryptionOptions option
  • added option in method updateCall to use SIP UPDATE instead of re-INVITE
  • added Objective-C sample with background method execution using GDC
  • added script to generate dynamic SDK XCFramework
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The Future of VoIP Communication: Trends to Watch in 2025

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As we move into 2025, the VoIP industry is poised for significant advancements. Emerging trends indicate a shift toward smarter, more integrated communication solutions. Here’s what to watch for. Enhanced Video SIP Capabilities: The rise of remote work has increased … READ MORE

Update VOIP SIP SDK for Android

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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


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Update VOIP SIP SDK for iOS

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Try new features by downloading our latest update of VOIP SIP SDK for iOS.

iOS changelog:

  • - BREAKING CHANGE: fixed crash on iOS 16+ caused by socket background marking deprecated in iOS 10, this feature was used to operate while in background so that current SDK is unable to work in background on iOS 16+ without using PushKit
  • - bumped minimum supported iOS version to 12
  • - added methods to modify RTP media packet information
  • - added option to remove remote-candidates attribute in SDP
  • - added option to preserve media dynamic PT on call hold
  • - added rtcp-mux support (UDP, SRTP, ICE)
  • - added option to enable outgoing calls with rtcp-mux
  • - changed libVersion to a class property, which allows to query SDK version without actual initialization
  • - added option to control audio session reset on call end
  • - added counters for RX and TX bytes counter in readCallMediaQuality result
  • - update logic in OK reply for INVITE request to properly create answer with ice-mismatch in case RTCP-MUX option is enabled
  • - fixed wrong INVITE header on CANCEL
  • - added multiple call example app


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