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How networks affect sound quality

Posted by Guest Blogger on Nov 30, 2016 3:41:00 PM

 

 

By Stefan Eriksson, Marketing and Communications Manager of Konftel

Remote meetings with poor quality audio are often exhausting. Misunderstandings become more likely because it’s difficult to hear nuances and other subtleties in conversation. So you want to aim for the best sound quality possible during teleconferences. The following is a quick explanation of different technical requirements for audio quality.

  • A purely mobile solution gives you great flexibility and mobility, but sometimes at the expense of sound quality. Many mobile operators now offer HD Voice in their networks, which delivers HD audio if the phone supports the technology.
  • Traditional analog telephony delivers an acceptable sound quality, but with limitations in frequency range. Sometimes known as telephone quality or narrowband.
  • VoIP, i.e., digital telephony via the data network (voice over IP), allows for extended frequency range, but with some compression. IP makes it possible to achieve superior audio quality, also called HD audio or wideband.
  • Remember that all local networks and accessories, e.g. Wi-Fi, DECT (wireless telephony) or Bluetooth®, affect the transmission capacity and can have an adverse impact on the sound quality.
  • All of Konftel’s phones and conference units offer HD audio in contexts where PBXs and networks support it.

 

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Topics: VoWi-Fi, QoS, Wireless, VoIP, Total Voice Solution, DECT

The Secrets of a Successful SIP Trunk Migration

Posted by Guest Blogger on Sep 14, 2016 2:50:00 PM

In the complicated SIP trunking migration process, here are some tips that will help you achieve the results you want for your organization.

By Andrew Prokop of SIP Adventures, a unified communications blog

Learning never exhausts the mind.
-- Leonardo da Vinci

I go to a fair number of tradeshows and industry conferences throughout the year, and as much as I love presenting at these events, I am just as thrilled to attend sessions given by my communications colleagues. It's rare when I don't pick up a tip or two, and there have been a number of sessions that have changed the way I view a product or a particular technology.

This year, I presented two breakout sessions at Avaya's IAUG Engage 2016 conference and attended at least a half dozen more. I would love to write about all my favorites, but for now, I will pick one.

For me, Larry Riba's "Secrets of a Successful SIP Trunking Migration" was a highlight. It's not that I haven't been living and breathing SIP migrations for the past several years. Believe me, I've paid my dues, time and time again. Still, hearing personal experiences allow me to see things that I might not otherwise see. Even the best of us fall into patterns and tend to repeat the same methodologies over and over again.

Larry began his presentation by discussing the benefits of SIP trunking. While most were not new to me (e.g. better redundancy and failover, cost savings, reduction in inbound and outbound trunks, etc.), a few were not on my personal list of "Why SIP?" For instance:

  • Simplified call recording infrastructure with the capability to record in stereo
  • Centralizing SIP trunks can often become the catalyst for improving WAN resiliency and increasing bandwidth, benefits that are then shared with non-voice traffic

Following the benefits of SIP, it was off to checklists for preparation, design decisions, choosing a SIP provider, planning, and avoiding pitfalls.

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Topics: SIP

Welcome to our Think Tank

In this blog you'll read our thoughts on business telephone systems. While a lot has changed in telecom since TeleDynamics was founded in 1981, we remain as committed as ever to delivering the best customer service in the industry.

If you would like elaboration on a specific topic, please let us know in the comments section.

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