SIP: Add focus to your bird’s eye view

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2021-02-21

SIP: Add focus to your bird’s eye view

Sometimes there is just too much data and focusing on the really important stuff becomes harder and harder. What helps is aggregation. It improves clarity. And decision making.
Voipfuture’s Qrystal aggregates detailed measurement data to any dimension of interest. What you get is high-level yet accurate information. On regions, branch offices, interconnection partners, VIPs, routes and destinations.
You simply get things done more efficiently. Means: reduced stress and improved results. More info? Happy to help.

Stop looking for SIP faults. Start finding them

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2021-02-21

SIP: Add focus to your bird’s eye view

The Voipfuture way of doing things is: Go deep. Recognize failure patterns. And finally, automate everything through appropriate indicators. This immediately makes issues visible. On call, trunk or cell level.

It empowers the operational team to achieve efficiency. So no time is wasted on manual, routine and repetitive tasks. Because both really is important – signaling quality and the team’s time too.

Critical Loss Densitiy

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Intelligent Indicators

2021-01-14

The worst loss isn’t burst loss

Everybody knows that bursts of lost packets negatively impact speech quality of VoIP calls. The gaps in the packet stream directly translate to gaps in the audio. But there is an even worse form of packet loss.

Imagine a series of frequent but individual packet losses, e.g. packet lost, packet received, packet lost, packet received, etc. We call this pattern Critical Loss Density (CLD).

It’s clear that such a loss pattern is bad for speech quality, because loss concealment mechanisms – for example, replaying the last received packet – cannot mask a multitude of gaps stretching over time. This loss pattern is often caused by low level issues with network links such as old or broken fibers.

Qrystal is the only passive monitoring solution on the market that can detect CLD and identify the root cause.

 

Happy to help.

Carsten

Beware of all call drops

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2020-11-26

Beware of all call drops

As a user you know for sure when your call drops. Yet, as a mobile service provider you probably don’t. The reason is that conventional call drop detection relies on data provided by individual network elements, e.g. in the RAN. This view often does not match the user experience.

We at Voipfuture care about user experience and thus implemented call drop detection based on the analysis of user behavior. When your 4G call drops, you will typically try to re-establish the call. Qrystal takes these redial calls and inspects their RFC 3326 SIP reason headers. Machine-learning is then used to determine the headers that indicate call drops.

The result: Qrystal’s dropped call ratio (DCR) is in line with values determined by drive tests. Even better: the data is available 24/7, for your entire network.

Bearer Loss Events

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2020-11-11

Bearer Loss Events

How to efficiently deal with dropped calls

For customers, there is little that is more dissatisfied than call drops. But the equation is simple: more mobility (i.e. more handovers) and more traffic load lead to more dropped calls. Extremely helpful in understanding them are SIP reason headers (RFC 3326). They indicate why a SIP request was issued. Specifically, when a call is dropped for technical reasons, the final BYE message includes a reason header specifying the actual drop cause. Qrystal’s statistical analysis of these reason headers is thus key to identifying and solving dropped calls in VoLTE services. A recent customer case solved using Qrystal impacted millions of customers – and demonstrated that the network is not kidding when it reports “Dedicated Bearer Lost”.

SIA – more than a million calls per week

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2020-07-08

SIA – more than a million calls per week

Hi all,

 

In my last post about the SIA (SDP in ACK) I said that the problem doesn’t come up that often. The question remained open: What does “not that often” mean?

The screenshot shows two things. Firstly, the problem is minor in percentage terms. On the other hand: In this case, more than a million calls per week are affected.

If the problem is regionally concentrated, the operations team definitely should know about it.

 

Take care,

Carsten

Webinar: Media KPIs

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Rohde & Schwarz and Voipfuture launch AVQA to address new requirements in the ATM market

R & S AVQA KPI Monitor
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Press Release

Rohde & Schwarz and Voipfuture launch AVQA to address new requirements in the ATM market

In an exclusive partnership, Rohde & Schwarz and Voipfuture address needs for quality assurance in transition to IP networks

Munich/Hamburg, June 30, 2020 – Rohde & Schwarz and Voipfuture today announced the release of R&S AVQA, a ground-breaking monitoring solution for voice communications in air traffic management (ATM). The transition to IP created new market needs and opportunities, which gave rise to the collaboration between the two companies.

R&S AVQA stands for ATC Voice Quality Assurance and provides air traffic service providers (ANSP) with unique passive monitoring capabilities for ATM communications that covers signaling as well as media and radio transmission performance. Rohde & Schwarz teamed up with Voipfuture to create a unique solution for this important market. The development of R&S AVQA strongly benefited from the experience Voipfuture gained in over 10 years of Voice over IP (VoIP) monitoring in the telecommunications industry.

The solution is already deployed in a few ANSP networks assuring service quality. Typical use cases are monitoring quality and performance KPIs agreed on with WAN providers/carriers or the regular reporting of network quality towards the respective Civil Aviation Authority. An additional benefit is a reduced troubleshooting time by quickly identifying and localizing root causes of IP network problems such as misconfigured routers/switches or faulty fibers.

“We identified these market requirements early and entered into a partnership with Voipfuture,” Constantin von Reden, Vice President Market Segment ATC at Rohde & Schwarz, states. “Voipfuture stood out with their impressive technology and their experience. The Voipfuture team is very customer-oriented, which perfectly aligns with our approach to the market. We are very happy to work with them on the outstanding R&S AVQA product.”

“We are proud to provide our outstanding technology to this partnership,” says Eyal Ullert, Chief Sales Officer, Voipfuture. “Thanks to Rohde & Schwarz’ deep understanding of the needs of ANSPs, we managed to adopt our existing technology to the specific requirement in the ATM market.”

R&S AVQA is part of CERTIUM Analysis which includes leading test and measurement solutions for VoIP networks, radios, navigation and satellite. Rohde & Schwarz recently introduced CERTIUM, as a one-stop solution for the full lifecycle of an ATC system.

Voipfuture, a premium voice quality analytics vendor providing tools for assessing, aggregating, analyzing, and visualizing voice quality information, headquartered in Hamburg, Germany, brings years of experience in the domain of VoIP monitoring. Rohde & Schwarz with its partner Voipfuture make a significant contribution to safe, secure and efficient ATM.

 

Press contacts

Europe (headquarters):

Dennis-P. Merklinghaus

(phone: +49 89 4129 15671; email: press@rohde-schwarz.com)

North America:

Tomas Berghall

(phone: +1 503 5239489; email: Tomas.Berghall@rsa.rohde-schwarz.com)

Asia Pacific:

Wen Shi Tong

(phone: +65 6 307-0029; email: press.apac@rohde-schwarz.com)

Voipfuture:

Carsten Niepmann

(phone: +49 40 688 900 125; email: cniepmann@voipfuture.com)

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We, VOIPFUTURE GmbH (Registered business address: Germany), would like to process personal information with external services. This is not necessary for the use of the website, but allows us to interact even more closely with them. If desired, please make a choice: