Noise reduction and Echo cancellation

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Copyright © SoliCall Ltd.

June 2015

About us

SoliCall is a technology company.

SoliCall develops unique software products for improving audio quality in both the network and the devices.

SoliCall has a proven track record and its technology is used to filter billions of voice chat minutes per month.

Copyright © SoliCall Ltd.

SoliCall’s Technology

Noise Reduction – attenuate ambient noise and noise generated in the network.

Profile-Based Noise Reduction – improve audio quality by focusing on the voice of the speaker.

Echo Cancellation – cancel echo that is generated on local or remote devices and networks.

Automatic Gain Control – keep the voice at a comfortable volume regardless the distance of the speaker from the microphone and phone settings.

Copyright © SoliCall Ltd.

SoliCall’s Products

PBXMate – A plug-and-play solution for SIP based VoIP network.

SDK for Client and Server. OEM solution for manufacturers / developers.

SoliCall Pro and Personal PBXMate - for a single phone.

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PBXMate

A plug-and-play software product for SIP based VoIP network.

Improves audio quality for all participants in a call. Constantly improves and monitors quality.

Noise and echo are removed and speech level is adjusted to a comfortable level

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Usage of PBXMate – examples

Call CentersIncrease the efficiency of the call center by

improving both incoming and outgoing audio.

Teleconferencing ProvidersImproves the quality of the calls even with large

amount of participants.

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PBXMate AddOn - Installation

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PBXMate AddOn – Phone Setup

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Only Phones for which the Sip Proxy port ismodified to 5061, will work with PBXMate.

Note: In this Sip Proxy architecture, the phone willwork with G.711 or G.722. For G729 and other codes, a Sip Trunk architecture should be used.

PBXMate AddOn – Making Calls

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Upon successful phone setup, calls should appear in the statistics tab.

PBXMate AddOn – Basic Filter Selection

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PBXMate AddOn – Advanced Setup

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Parameter Location:/usr/local/solicall/bin/pbxmate.conf

Statistic LoggingStatisticsFile=../log/stats

Enable Recording:OrigRecordingLibrary=../rec/CleanRecordingLibrary=../rec/

PBXMate AddOn – Advanced Setup

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Profile-Based noise reduction:Once a profile is created, you can use it:ProfileBasedNRName=English

Setup for conference calls:DefaultCmd=*--1

PBXMate – Alternative Architectures

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As a SIP Trunk

As a Router

Note: Using these architectures requires a change in the dial-plan of the PBX.

Thank You

Q & A.

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