TANDBERG D13192 manual Intelligent Packet Loss Recovery Iplr

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Technical Description of TANDBERG Gateway with software version G2

4.1.5.9 Intelligent Packet Loss Recovery (IPLR)

IPLR is an ITU standards based packet loss compensation for H.323 that improves received video into the TANDBERG Gateway. IPLR supports all video protocols and resolutions that TANDBERG Gateway already has implemented and is compatible with all terminals.

IPLR is a special algorithm developed at TANDBERG that will make efforts to reconstruct the lost packets and reduce the visual effects caused by packet losses.

•If the TANDBERG Gateway experiences packet loss from an endpoint, it will ask the endpoint to handle packet loss. This requires Intelligent Packet Loss Recovery functionality on the endpoint.

•If an endpoint experiences packet loss from the TANDBERG Gateway, the TANDBERG Gateway encoder will not start IPLR since this would affect the received video quality for the other endpoint.

D13192 Rev. 02

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Contents Tandberg Table of contents Miscellaneous Features Introduction Software Product DescriptionOperation and User Interface Multiple Calls Tandberg Gateway Interfaces & FeaturesNetwork Interfaces and Features PRI Trunk Grouping PRI E1/T1 IsdnIsdn number plan PRI E1/T1 IsdnPRI Pinout Service code ref.1Sprint Service code ref.2 PRI T1 US onlyExample Dial In ServicesDirect Inwards Dialing did Interactive Voice Response IVRQuality of Service features QoS IP Dial Out ServicesService Prefixes HotlineIP adaptive bandwidth management Asymmetrical media capabilities Diagnostic tools for IPDynamic playout buffering Latency & JitterVideo Function Port TypeAudio Intelligent Packet Loss Recovery Iplr Yellow Alarm Description of PRI AlarmsRed Alarm Blue AlarmIntelligent Call Management ICM Telephone calls Tandberg Gateway CapacityVideo calls Tandberg Gateway Capacity typical scenarios for 4Mb Option Secure Conference Encryption10 H.243 Multipoint Transparency 2 H.221 Aggregation StandardsIsdn channel set-up 3 H0API commands RS232 Interface/Application Programmable Interface APIVideo Formats Video FeaturesOptimised Video Compression Asymmetric Video FormatsGateway Call Proceeding Duo VideoCustom pictures GW Extension Enquire pictureTelephony Audio FeaturesCustom Sounds Audio Compression AlgorithmsPlatform Requirements System ManagementEthernet/LAN Interface Transport Control Protocol/User Datagram Protocol/Internet Dynamic Host Configuration Protocol, enabling the system toProtocols Supported Simple Network Management Protocol , standard for networkSystem Management Functionality SecurityTelnet Challenge Service SSLDisable Services Security AlertIncoming H.323 call Layer 4 ports used by the systemOutgoing H.323 call Listening socketsFile system FTP Miscellaneous featuresPhone book Directory dir.prm Environmental Considerations Environmental IssuesTANDBERG’s Environmental Policy Connection of Tele-Terminal Equipment Electrical SafetyProduct Approvals EMC Emission Radiated Electromagnetic InterferenceNebs approval Product Reliability Packaging Technical specification of Tandberg GatewayMechanical information10 System Power Consumption Operating Temperature and HumidityStorage and Transport Temperature Technical Specification sheet Live Video ResolutionsEmbedded WEB server