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Version:Ozeki SDK v1.8.22
Updated: 2018.05.24.
Download:  (139.1 MB) 
Ozeki_SDK_1.8.22.deb  (73.7 MB) 
  • Bug fix: Local ports free up after unregistering Ozeki Softphone from Ozeki PBX.
Version:Ozeki SDK v1.8.21
Updated: 2018.05.04.
  • There was bad sound quality in the Conference Room when the connected VoIP phones sent the RTP packets in different intervals. It is fixed now.
Version:Ozeki SDK v1.8.19
Updated: 2018.04.09.
  • Bugfix in receiving RTP packets
Version:Ozeki SDK v1.8.18
Updated: 2018.03.08.
  • Improvements: Snapshot handler has been improved on Linux and Arm platforms.
Version:Ozeki SDK v1.8.17
Updated: 2018.02.16.
  • Bugfix in network interface handling
Version:Ozeki SDK v1.8.16
Updated: 2018.02.08.
  • Bugfix in Mpeg4Recorder class
Version:Ozeki SDK v1.8.15
Updated: 2018.02.01.
  • Improvement in Linux and Raspberry Pi versions. Both platforms have the same installer from this SDK version.
  • Improvement in audio quality handling.
  • Improvement in Mpeg4Recorder class. Viewing live camera stream will have no delay during recording the stream.
  • Improvement in connecting to Mjpeg streams.
  • Bugfix in keepalive, wav recording and audio playing (mp3 and wav) functions in the Ozeki Demo Softphone (00_OzekiDemoSoftphoneWPF).
  • Bugfix in SnapshotHandler class.
  • Bugfix in GrayScale filter.
Version:Ozeki SDK v1.8.14
Updated: 2018.01.19.
  • Bugfix in PhoneCallAudioReceiver class. In some cases there was an exception when a PhoneCallAudioReceiver object was connected to another MediaHandler. It is fixed now.
  • Examples have been updated.
Version:Ozeki SDK v1.8.13
Updated: 2017.12.06.
  • New Feature: It is possible to read Bluetooth Headset buttons with Ozeki VoIP SIP SDK. On this page you can find a detailed tutorial for it: Link
Version:Ozeki SDK v1.8.12
Updated: 2017.11.24.
  • Bugfix in attended transfer function
Version:Ozeki SDK v1.8.11
Updated: 2017.11.20.
  • Bugfix in RTP stream.
Version:Ozeki SDK v1.8.10
Updated: 2017.11.08.
  • User-Agent configuration has been simplified for SoftPhones and PBX-es.
Version:Ozeki SDK v1.8.9
Updated: 2017.10.27.
  • CameraServer performance improvement for streaming HD content.
  • Bugfix in ContactIdHandler.
Version:Ozeki SDK v1.8.8
Updated: 2017.10.20.
  • Improvement in ContactIdHandler. Now it completely supports the Ademco ContactID Protocol specification (SIA DC-05-1999.09)
  • Bugfix in SDP parser
  • Bugfix: The FrameCapture class is no longer capable to read picture files from a folder and send them as frames. We implemented this specific feature in a new class: FrameCaptureFromFolder and we also fixed well known bugs in the new implementation.
Version:Ozeki SDK v1.8.7
Updated: 2017.09.20.
  • Improvment in RTSP Camera connection.
  • Improvement in SIP registration on PBX side. Some SIP clients were not able to connect to Ozeki PBX. Those clients are compatible from this version.
  • Bugfix in call handling on PBX side. Blind transfer function did not work when multiple transfers were made. It is fixed.
  • Bugfix in playing audio files on Linux and ARM based operating systems.
Version:Ozeki SDK v1.8.5
Updated: 2017.08.25.
  • Bugfix in call handling related to memory leak issue.
  • Bugfix in IP camera connection handling. In some cases it did not work when you disconnected from an IP camera and then reconnected to the camera. It is fixed now.
  • Bugfix in Linux SDK. Exceptions on Linux fixed.
Version:Ozeki SDK v1.8.4
Updated: 2017.08.07.
  • Improvement in the sound quality of PCMU, PCMA and G.722 codecs.
  • Improvement in Answer Machine Detector: It detects more efficiently whether the other party is a machine or human.
Version:Ozeki SDK v1.8.3
Updated: 2017.08.02.
  1. Improvement in G.722 codec quality.
Version:Ozeki SDK v1.8.2
Updated: 2017.07.20.
  • Improvement in the sound quality of Google Text To Speech.
Version:Ozeki SDK v1.8.1
Updated: 2017.07.07.
  • New Feature: In case of providing an RTSP URL in the Camera Url Builder that contains the username and the password, Ozeki SDK can parse the data from the URL, so you do not have to provide the username and the password again.
  • New Feature: It is possible to change the background color of a TextOverlay object.
  • Bugfix: Connections between some AudioHandlers were wrong, which caused bad sound quality. This has been fixed.
Version:Ozeki SDK v1.8.0
Updated: 2017.06.27.
  • New Feature: Google Speech API support. From this version the TTS and the STT functions of Google can be used to convert text to speech and speech to text using the available languages of Google Platform.
Version:Ozeki SDK v1.7.1
Updated: 2017.06.23.
  • Improvment in sample applications.
  • Improvment in RTSP Camera connection.
  • Improvment in ONVIF connection: UDP and TCP changing now works flawlessly.
  • Bug fix in Unhandled exceptions.
  • Improvment in phoneline registration to PBXs: The issue when the same phone numbers are registered to two PBXs and the calls are received by the wrong one is now fixed.
  • Improvment in AudioQualityEnhancer: AudioQualityEnhancer has a Start and Stop function. It sends through the data unprocessed without Starting.
  • Network checking before sending REGISTER.
  • SUBSCRIBE message handling in PBX.
  • Improvment in video calls: The disconnection issue is now fixed.
Version:Ozeki SDK v1.7.0
Updated: 2017.05.05.
  • New feature: Opus codec is available from this version. You can make and receive VoIP calls using Opus codec.
  • Bugfix in SIP message handling.
  • Bugfix in USB Camera handling.
  • Bugfix in connecting to Mjpeg streams.
Version:Ozeki SDK v1.6.9
Updated: 2017.04.21.
  1. Improvement in VideoViewer class: It is possible to disable the context menu from this version.
  2. Bugfix in sending Contact ID messages.
  3. Bugfix in managing camera stream profiles.
  4. Bugfix in handling resources.
Version:Ozeki SDK v1.6.8
Updated: 2017.03.20.
  1. Improvement in RTSP handling.
  2. Improvement in connecting to mjpeg streams.
  3. Bugfix in the Attended transfer function.
  4. Bugfix in the UDP TransportType of the DirectIpPhoneLine.
Version:OZEKI SDK v1.6.7
Updated: 2017.02.23.
  1. Bugfix in escaping characters in SIP headers.
  2. Bugfix in webcamera recorder. Now it is possible to record videos longer than 30 minutes.
Version:OZEKI SDK v1.6.6
Updated: 2017.02.08.
  1. Bugfixed memory leak in ComputerVision examples.
  2. Bugfix at moving calls between different ConferenceRoom objects.
Version:OZEKI SDK v1.6.5
Updated: 2017.01.31.
  1. From version 1.6.5 Ozeki SDK requires .NET 4.5.2
  2. Improvement: RResource decompression became faster and its CPU usage decreased.
  3. Bugfix in Direct IP phone call. In case of UDP transport type the port is now released after Direct IP phone call.
  4. Bugfix in RTSP connectivity.
  5. Bugfix in Camera URL Builder component.
Version:OZEKI SDK v1.6.4
Updated: 2017.01.04.
  1. Improvement in h264 video handling. Now h264 videos are faster and have better quality.
  2. This version is able to connect to SIP servers which have multiple IP addresses.
  3. No more exceptions occur in camera connections and SIP messaging.
  4. Bugfix in streamer examples. It is able to connect to all streamer examples via RTSP.
Version:OZEKI SDK v1.6.3
Updated: 2016.12.05.
Version:OZEKI SDK v1.6.2
Updated: 2016.11.18.
  • Bugfix in ContactIdHandler. It is able to send multiple contact id messages.
  • Bugfix in IncomingCall event. From this version it will not occur multiple times.
Version:OZEKI SDK v1.6.1
Updated: 2016.11.17.
  1. The class DeviceInfo in the Ozeki.Media namespace has been renamed to AudioDeviceInfo to better describe its role and to avoid ambiguity.
  2. New feature:Native HTML5 video streaming
  3. New feature:.deb packages for the experimental Linux/Mono version of the SDK:
    Ozeki_SDK_1.6.1.deb - only compatible with PC
    Ozeki_SDK_1.6.1_armhf.deb - only compatible with Raspberry Pi
Version:OZEKI SDK v1.6.0
Updated: 2016.11.07.
  1. New feature: WebMStreamer class. From this version it is possible to stream video and audio together to a website using the video tag of HTML5. See: 14_WebMStream_For_HTML5 example (\Ozeki\Ozeki SDK\Examples\Camera\05_Advanced\14_WebMStream_For_HTML5).
  2. Improvement: VideoViewer turns black when the camera connection ends.
  3. Improvement: It is possible to provide the number of extensions which you wish to subscribe to (presence event):
    var subscription = _phoneLine.Subscription.Create("presence", "100");
    subscription.NotificationReceived += subscription_NotificationReceived;
  4. Bugfix: You can get the type of incoming call if the IncomingCall event occurs (e.Item.CallType).
  5. Bugfix: System.InvalidOperationException of System.Drawing.Image.Clone() in Ozeki.Media.VideoViewerWF has been fixed.
  6. Bugfix: CPU issue has been fixed in case of using the TCP transport type.
Version:OZEKI SDK v1.5.3
Updated: 2016.10.26.
  1. New feature: SDP information can be saved during RTSP connection. See: BasicIPCameraViewer example.
  2. Bugfix in RTSP handling.
  3. Bugfix in Contact ID Handler: Multiple Contact ID messages can be sent and the number of sending attempts can be queried.
  4. Bugfix in Mpeg4Recorder class.
Version:OZEKI SDK v1.5.2
Updated: 2016.10.07.
  1. Bugfix in Linux dll
  2. Bugfix in MJPEGConnection class
  3. Bugfix in MJPEGStreamer class
  4. Bugfix in CreateDirectIPCallObject method
Version:OZEKI SDK v1.5.1
Updated: 2016.09.30.
Download:  (120.6 MB) 
  1. Bugfix in RTSP handling
  2. Bugfix in Mpeg4 recorder
  3. Minor bugfixes
Version:OZEKI SDK v1.5.0
Updated: 2016.09.23.
Download:  (120.1 MB) 
  1. Improvement in MjpegStreamer: From this version Ozeki SDK calculates the number of frames that are sent through the network based on the bandwidth. This means that the packets are not lost on the network, and the latency becomes minimal. You can find an example here.
  2. Ozeki SDK for Linux: Ozeki SDK has become available on Ubuntu based Linux distributions from this version. You can develop Camera viewer, streamer and VoIP applications using Mono Framework. You can read more about the Linux version here.
Version:OZEKI SDK v1.4.7
Updated: 2016.09.16.
Download:  (107.1 MB) 
  1. Bugfix in camera connection
  2. Minor bugfixes
Version:OZEKI SDK v1.4.6
Updated: 2016.09.05.
  1. Bugfix in H.264 codec
  2. Bugfix in RTP packet handling
  3. Bugfix in RTSP connection handling
  4. Bugfix in call handling (PBX mode)
Version:OZEKI SDK v1.4.5
Updated: 2016.08.11.
  1. Improvement: It is possible to disable DNS SRV from now.
  2. Bugfix in DNS resolution.
Version:OZEKI SDK v1.4.4
Updated: 2016.08.02.
  1. Improvement: VideoViewerWPF mouse events
  2. Improvement in DNS SRV handling
  3. Bugfix in MjpegConnection class
  4. Bugfix in PTZ
  5. Minor bugfixes
Version:OZEKI SDK v1.4.3
Updated: 2016.07.14.
  1. Bugfix in DNS SRV handling
  2. Bugfix in SIP message handling
  3. Bugfix in Ozeki Demo Softphone
Version:OZEKI SDK v1.4.2
Updated: 2016.06.24.
  1. Bugfix in RTSP
  2. Bugfix in DemoSoftphone
  3. Bugfix in Call State Change in PBX Force Relay mode
  4. Bugfix in Outbound Call mapping
  5. Bitmap converter improvement
  6. AudioQualityEnhancer improvement
Version:OZEKI SDK v1.4.1
Updated: 2016.06.07.
  1. Bugfix: BigConnect softphone and Cisco Jabber Video Client are now compatible.
  2. Bugfix in DNS SRV resolv.
  3. Bugfix in GainControl class.
Version:OZEKI SDK v1.4.0
Updated: 2016.05.30.
  1. New feature: OggReader class and OggStreamPlayback class.
  2. New feature: DNS SRV is now supported.
  3. Bugfix in memory handling.
Version:OZEKI SDK v1.3.9
Updated: 2016.05.19.
  1. New feature: Incoming and outgoing RTP data can be accessed.
  2. Bugfix in network interface handling.
  3. Bugfix in Answering Machine Detector.
Version:OZEKI SDK v1.3.8
Updated: 2016.05.03.
  1. New feature: VideoViewerWF Mouse events
  2. New feature: RTCP sender report
  3. Bugfix in ONVIF listener
  4. Bugfix in Camera Server
Version:OZEKI SDK v1.3.7
Updated: 2016.04.06.
  1. Bugfix in Mp3StreamRecorder class.
  2. Bugfix: Now we can play mpeg4 videos with AVPlayer class recorded by Mpeg4Recorder class.
  3. Bugfix in MjpegStreamer class.
  4. Bugfix in BitMapConverter class.
  5. RTSP handling improvement
Version:OZEKI SDK v1.3.6
Updated: 2016.03.22.
  1. Bugfix: Now we can play our RTSP stream.
  2. Bugfix in MjpegStreamer class.
  3. Bugfix in CameraUrlBuilder classes.
  4. Bugfix in examples and demo applications.
  5. Asserts have been removed.
Version:OZEKI SDK v1.3.5
Updated: 2016.03.11.
  1. Bugfix in Mp3StreamRecorder class
  2. Bugfix in BitmapConverter class
Version:OZEKI SDK v1.3.4
Updated: 2016.02.23.
  1. Bugfix in CreateCallObject method
  2. Bugfix in Ozeki IP Camera Manager Demo
Version:OZEKI SDK v1.3.3
Updated: 2016.02.22.
  1. Bugfix in AudioQualityEnhancer
  2. H264 Decoder improvement
  3. RTSP handling improvement
  4. Bugfix in Ozeki Demo Softphone
  5. Bugfix in Ozeki IP Camera Manager Demo
Version:OZEKI SDK v1.3.2
Updated: 2016.02.17.
  1. Bugfix: Sometimes receiving peer to peer calls did not work.
  2. Bugfix: There was a space character in the SDP in case of TLS transport type. It has been removed.
  3. Bugfix: SDK did not send back ACK SIP message when call type was modified. It works now.
  4. Bugfix: Tripwire event sender has been fixed.
  5. Improvement: VideoConcat class
Version:OZEKI SDK v1.3.1
Updated: 2016.02.01.
  1. Improvement in MjpegStreamer
  2. Bugfix in Mpeg4Recorder
  3. Bugfix in H264 encoder and decoder
Version:OZEKI SDK v1.3.0
Updated: 2016.01.27.
  1. Namespace correction
  2. New feature: New MediaHandler (VideoConcat - it is able to concatenate multiple video sources)
  3. New example: VideoConcat (\Ozeki\Ozeki SDK\Examples\Camera\05_Advanced\13_VideoConcat)
  4. Bugfix: Bugfix in Ozeki IP Camera Manager and Ozeki Demo Softphone applications
  5. RTSP handling improvement
  6. ONVIF handling improvement
Version:OZEKI SDK v1.2.0
Updated: 2015.11.16.
  1. New feature: Tampering
  2. New example: Tampering detector (Camera\5_Advanced\11_Tampering)
Version:OZEKI SDK v1.1.2
Updated: 2015.11.09.
  1. Minor bugfixes
  2. TextOverlay improvement
  3. Mpeg4Recorder improvement (e.g. FramesCount property)
  4. Documentation bugfix
Version:OZEKI SDK v1.1.1
Updated: 2015.11.03.
  1. New MediaHandler: VideoCodecConverter (you can modify the video format from raw format to h263\h263+\h264 formats)
  2. ImageMask improvement (selectable mask color)
  3. DeviceDiscovery bug and memory leak fix
  4. Instant message response received event raised
  5. New Datareceived event in the WaveStreamRecorder to catch the raw data
  6. AudioQualityEnhancer bugfix
  7. New examples: Camera\5_Advanced\10_Image_Mask_WF
  8. VideoViewer improvement
  9. WPF controls bugfix
Version:OZEKI SDK v1.1.0
Updated: 2015.10.26.
  1. Namespace simplification
  2. Examples correction and improvements (e.g. Ozeki Demo Softphone)
  3. Native exception handling
  4. Bugfix in .NET 3.5 dll (VoIP)
Version:OZEKI SDK v1.0.1
Updated: 2015.10.13.
  1. A bug was discovered in speaker handling. It is fixed.
Version:OZEKI SDK v1.0.0
Updated: 2015.10.12.
Changes:Ozeki SDK is the next generation of our Camera SDK library. This is an amazing new development with huge improvements in the field of camera handling. We have simplified the namespaces, optimized the code and fixed several annoying bugs. Please download, and install this version, and check the examples folder to see what you can do with this fantastic new tool.

Some of the improvements:
  1. Complete VoIP support was added to the library. This includes Voice Over IP audio and video telephone calls
  2. With this new version you can create operation control center solutions, where all cameras and voice calls are handled by one software. For example you may project the screen of several cameras, and forward selected cameras in voip video calls to remote locations. Please check out the VoIP/PBX examples to get an idea about this option.
  3. The version numbers have been reset, because we introduced a new version number policy.The first section of the version number will be updated only if the internal architecture changes, and compatibility needs to be verified for your applications. The second section of the version number will be increased when new functionality is added to the SDK. The third section indicates bug fixes and performance optimization.
  4. Several new examples were created. Please check out the examples folder for a complete list.
  5. The off-line HTML documentation is also improved.

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Step 3: Open the software


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