Qrystal for AWS –Voice Service Analytics

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September 1, 2021

Qrystal for AWS –Voice Service Analytics

Offering Contact Center voice solutions in AWS? Then join us for a live demo of Qrystal for AWS.

We will show you how Qrystal for AWS ensures premium voice service performance in the cloud – backed up by customer cases.

Experience the deep insights provided by Qrystal, optimizing your operational efficiency, speeding up root cause analysis and giving you full control over your voice service. Learn how Qrystal has proven to be an essential tool for our contact center customers.

Qrystal turns customer complaints into compliments.

Show me more: https://lnkd.in/e2KkyMK5
More about Qrystal for AWS: https://lnkd.in/edf4ku7

#telecommunications #telco #AWS #AmazonWebServices #cloud #CCaaS #UCaaS #ContactCenter #CallCenter #Voipfuture #Qrystal

Migrating VoLTE subscribers to a new vIMS

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August 17, 2021

Migrating VoLTE subscribers to a new vIMS

Call drops fuel VoLTE subscriber anger. Migrating your customers to a new virtual IMS demonstrates the need for accurate data.

An MNO is migrating VoLTE subscribers to a new virtual IMS in a private cloud. In the process, the number of subscribers complaining about dropped calls rose significantly. Among them VIPs with direct access to management. The problem is escalated.

The new IMS vendor claims a very low amount of dropped calls (0.1%) which is not reflecting the amount of opened tickets and even lower than the dropped call ratio (DCR) of the old IMS platform.

Voipfuture data shows: the actual DCR is around 0.4 percent and in-line with subscriber complaints. Now the new IMS vendors is tasked with resolving the issue.

Follow the link below for more findings from troubleshooting this network
https://lnkd.in/eqJTPAPq

#telecommunications #telco #cloud #VoLTE #virtualIMS

Single sided calls in the VoLTE core

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July 13, 2021

Single sided calls in the VoLTE core

When your VoLTE subscriber places a call and doesn’t hear the other party, his next call will be to complain. This week we helped one of our tier-1 mobile SP to troubleshoot a series of single sided calls in a matter of minutes avoiding further escalations. Read below how:

 

One of our large mobile service providers replaced legacy 4G core with a new Mavenir virtual VoLTE core. While migrating subscribers there was large increase of end customer complaints about single-sided and silent calls.

Luckily, the SP was able to detect the root cause in matter of minutes using Voipfuture Qrystal.

In the below, the B-party was not able to hear the A-party. The reason is that the RTP flow from A-Party to B-Party is missing between the P-CSCF and the VoWifi UE. The RTP flow was present in the IMS network between the MGW and the P-CSCF, but was stopped in the new virtual VoLTE core. This troubleshooting is possible when the RTP Media on the VoLTE core is monitored on the access and IMS side.

 

Voipfuture now joined the Jobrad program

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2021-02-24

Voipfuture now joined the Jobrad program

For years we have been helping large and small telecommunications service providers to ensure the health of voice traffic. Now, we thought, it is time to do something for the health of our team. On the road.

Voipfuture now joined the Jobrad program, which allows our team members to lease bicycles. The German government covers half of the cost. Voipfuture tops up. Which is great. Buying a bike becomes easy. And costs next to nothing. Or nothing at all. The good feeling of doing something for your own health comes with it. And the world. And a breath of fresh air. As someone who benefits from it, I can only say one thing: Awesome.

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”.