Echo Cancellation, Art or Science? Part I

  • On November 18, 2016
Background First, let us apologize that this post is going to be a bit technical. Don’t worry we will try to keep it as simple as possible.  Echo cancellation, and more specifically Acoustic Echo Cancellation (AEC) is theoretically a very simple algorithm. The AEC algorithm receives a reference signal (i.e. the audio played to the […]
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Improving Audio Quality for Skype

  • On November 20, 2016
Background For many years, Skype has been one of the most popular softphones. Since Skype is being used on many brands of hardware and multiple network connections, there are bound to be occasions in which the audio quality is not satisfactory enough. We, at SoliCall, are constantly being approached for advice on ways to improve […]
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Active Noise Cancellation Headphones for Calls

  • On November 20, 2016
Background Active noise cancellation technology enables you to shield yourself from the ambient noise. Active noise cancellation headphones are using this technology and enable isolation from any noise in your background. As a result, you are not destructed by the background noise and you can focus on whatever you want to do: listen to music, […]
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Audio Quality for Elastix

  • On April 7, 2017
Background The Elastix users enjoy from a powerful unified communication system with very professional graphical user interface that provides a friendly way for monitoring and control the system. The powerful system together with the the ease-of-use is one of the main reasons that attract customers into using Elastix. [EDITED] New versions of Elastix no longer […]
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Poor Audio Quality with Hosted VoIP and Cloud-Based PBX

  • On December 25, 2016
Background The hosted VoIP service is gaining popularity like other cloud-based infrastructure services. SMBs prefer hosted VoIP solution to cut down costs and operational overhead. In addition many providers offer attractive build-in features on top of the standard service.  As opposed to other IT services, VoIP is more delicate and if not handled correctly it […]
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How can mobile operators increase revenue utilizing their existing infrastructure?

  • On November 20, 2016
Background Around the world, the competition for mobile operators intensifies every day. Their revenue shrinks due to increasing competition and the alternatives for free VoIP call on the data channel. In addition to the reduction in revenue, mobile operators are constantly required to invest a lot of money upgrading their infrastructure.  It is clear that […]
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Why we got used to ambient noise in telephony?

  • On November 20, 2016
Background If we just got a penny every time we heard the sentence:  “Our telephone equipment provides a superb audio quality… it could not be better…”.  Unfortunately, although this sentence is commonly used, it is one of the biggest self-deception in the industry.   When your friend calls you from the Mall or from the […]
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Echo Cancellation with Flash Clients

  • On November 20, 2016
Background In the beginning of this year, Adobe has released an acoustic echo cancellation as an integral part of its platform. Based on the feedback we are getting, the problem of echo was successfully reduced but not in all environments and especially not in environments that include mobile platforms.  SoliCall’s network echo cancellation technology could […]
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Improving Audio Quality with Analog Telephone Adapter (ATA)

  • On November 20, 2016
Background One of the first steps SMBs take towards VoIP is to add ATA to their existing analog telephone network. There are many well known brands of ATAs in the market today like Linksys PAP2, Cisco PAP2T, Grandstream HandyTone and others. Regularly we are requested to improve audio quality in such telephony systems – especially […]
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Noise Reduction and Echo Cancellation for existing VoIP Networks

  • On November 20, 2016
Background Many times we are asked for ways to cancel noise and improve audio quality in existing telephony networks.  The majority of the requests come from call centers and SMBs that are looking for simple plug-and-play solutions to resolve audio quality issues that they are facing.  Since most of these request arise for companies that […]
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