Intel 05-2352-005 manual Compatibility Notes, Echo Cancellation With Continuous Speech Processing

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Global Call applications that use the host-based H.323 protocol stack may generate the following error message in the gc_h3r.log file if the application enables the stack to send the PROCEEDING message automatically.

!22:22:19.393 ! M_SIGNAL ! L_ERROR ! 1 ! << SIGNAL::sendProcceding: RV cmCallSendCallProceeding Failed : [-996]

This error message can be ignored. The PROCEEDING message is actually sent.

2.3Compatibility Notes

Echo Cancellation With Continuous Speech Processing

For HMP Continuous Speech Processing (CSP), the Echo Cancellation parameter default value is set to OFF (echo cancellation disabled). To conserve CPU usage/MIPs, the application should keep this parameter value set to OFF.

For additional information about CSP, refer to the Continuous Speech Processing API for Linux and Windows Library Reference and the Continuous Speech Processing API for Linux and Windows Programming Guide.

Echo Cancellation With Conferencing

For HMP conferencing, the Echo Cancellation parameter default value is set to OFF (echo cancellation disabled) for compatibility with DCB applications. This parameter must not be turned ON by the application. Enabling echo cancellation causes poor conference audio quality.

For additional information about Conferencing, refer to the Audio Conferencing API for Linux and Windows Operating Systems Library Reference and the Audio Conferencing API for Linux and Windows Operating Systems Programming Guide.

Configuring UDP/RTP Port Range

The HMP system currently defaults to UDP/RTP ports 6000 through 6100 and UDP ports 49152 through 49xxx for RTP streaming, where 49xxx = 49152 + twice the maximum number of channels purchased under the licensing agreement. For example, if 120 channels were purchased, 49xxx would be 49392.

If the UDP/RTP port range used by the HMP system conflicts with other RTP service, the following procedure describes how to configure HMP to use a different UDP/RTP port range:

1.Stop the system service.

2.Locate the .config file in the /usr/dialogic/data directory that matches the FCD/PCD files associated with your licensed configuration.

HMP Linux 1.2 Release Update, Rev 05 — September 2006

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Contents September Release UpdateHMP Linux 1.2 Release Update, Rev 05 September How to Use This Publication PurposeIntended Audience Related Information Document Rev 05, published September Updated for Service UpdateDocument Rev 04, published December Document Rev 03, published JuneDocument Revision History Document Rev 02, published JanuaryDocument Rev 01, published October Release Developments Service Update Software InstallationAssumptions and Prerequisites Order of ProceduresFollowing messages are displayed Installing the Service UpdateEnvironment Variables HMP Verification DemoSupport for Suse Linux Enterprise Server Support for Red Hat Enterprise Linux UpdateSupport for 120 Low Bit Rate Channels Transaction RecordHMP Linux 1.2 Release Update, Rev 05 September Issue Type IssuesDefect Number PTR Number Product or ComponentDescription Issues Resolved in HMPFcdgen error while loading shared Dataformatmulaw Known Issues in HMP Restrictions and LimitationsGeneral Conferencing FaxGlobal Call, IP, and Ipml Demos VoiceResolved Restrictions and Limitations Host-based H.323 Protocol StackEcho Cancellation With Conferencing Echo Cancellation With Continuous Speech ProcessingConfiguring UDP/RTP Port Range Compatibility NotesConfiguring T.38 Service Port Range Coder Negotiation with Third Party Stacks SIP Call ControlExample Elvtune Using Ioctls Using Multiple NICs Under Heavy LoadsSolutions Operating System NotesRelease Documentation Documentation3 UpdatesCorrect Incorrect, Release Documentation, the following apply , Development Software, the following applyOperating Software Documentation Installation DocumentationHost Media Processing Diagnostics Guide Development Software Documentation Revised OriginalFax Software Reference for Linux and Windows Global Call API for Host Media Processing Library ReferenceGlobal Call IP for Host Media Processing Technology Guide HMP Linux 1.2 Release Update, Rev 05 September 2006September Dxmreciottdata Voice API for Host Media Processing Library Reference„ Cautions „ Description„ Errors Following example is for Linux applications „ ExampleFollowing example is for Windows applications HMP Linux 1.2 Release Update, Rev 05 September 2006September „ See Also Transaction Record Voice API for Host Media Processing Programming GuideAudio Conferencing API for Host Media Processing Demo Guide Demonstration Software Documentation$INTELDIALOGICDIR/demos/IPMediaServer IP Media Server for Host Media Processing Demo GuideGlobal Call API Demo Guide

05-2352-005 specifications

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