Who wants to shut down, must turn: the Internet-television-offers Telecom entertain and Vodafone TV in the test.
- IPTV: Telekom entertain and Vodafone TV test
- Telekom entertain in the test
- Vodafone TV test
Triple play – this keyword encountered again and again. In particular cable operators provided in this early by combined packages of television, Internet and telephone for high attention. But not outside are also the Classic Internet provider. So both the Telecom and Vodafone have connections including telephony, Internet and television in the portfolio. The latter goes by the abbreviation of IPTV (Internet Protocol television).
Everything at once is not easy
What so beautiful sounds simple in theory, not so easily is in practice. Because to run all services over one line, is highly complex. Important keyword there is prioritization. While one more time a blind eye while surfing the Internet, when uploading or downloading something that longer time-critical services such as telephony is much less tolerant. Right: Bottlenecks in the bandwidth this sometimes mean language delays or even completely broken connections. Similar to IPTV: patience compared to image errors or other problems in borders likely to follow here too. Just the TV viewing is one of the “activities” where they want to fight at least familiar with technical problems.
As well, this balancing act manages the providers of Telecom and Vodafone, has tested connect in cooperation with Zafaco GmbH. There were various aspects metrologically illuminated and rated – for example, how long it takes to zap through the channels or ramped up the system remote visually ready is. Interesting is also the evaluation of video quality, assessed with a value similar to the quality of voice telephony. In any case, there were quite significant differences between Telekom entertain and Vodafone TV.
How to connect and Zafaco test
As already with other tests in the fixed telephony market, connect relies on the cooperation with Zafaco. The measurement specialist set up a test setup at the site of Magdeburg with both IPTV providers. Over 80,000 readings have been included in our comprehensive review.
To accommodate all areas of concern under the magnifying glass, conducted the measurements at different load situations.
So, we investigated whether the behavior of IPTV reception at data load and telephony via Voice over IP (VoIP) changes or not also. Vice versa, it was interesting to see how IPTV impact on use of the Internet or the telephone.
So, it was found that in combination with IPTV and data load higher error rates in telephony occurred at Vodafone.
After Zafaco had reported this problem through customer service, it finally came the problem on the track. This resulted merely in the use of Vodafone TV via a VDSL line and was still not perfectly the prioritization of services adapted to VDSL. This error has been fixed but still during the measurement and then no longer occurred.
Also the Telecom did not come without caveats by the test, and so a failure like at Vodafone on the telephony error rate hit out.
However the weighting of telephony as well as the data measuring was by far not as high as the IPTV component. Since the distribution of television content raises specific questions which you can answer by the various measuring methods.
To do this, the Zafaco GmbH has developed together with University of applied sciences Cologne a quality measurement system for IP-based streaming audio / video services such as IPTV, Web TV and video-on-demand in next generation networks (NGN). Under the name “AV QoX”, this project is funded by the German Ministry of Economics (BMWi) in the central innovation program SMEs (ZIM). It has a measuring method, which is divided into several parts.
Thereby, the measurements were carried out according to set parameters.
So, the period is measured at system startup, which lies between the sending of the IR signal of to the set-top-box (STB) remote control and an evaluable video stream on the STB, say up to the reception of the first full screen. This process is more complex than it appears, because it consists of several components: the IR reception and processing, booting the system, the communication with the IPTV Headend system, request a video signal and receipt of the same. All IPTV measurements were taken in both without and with parallel data load, the aspect of the triple play, say the simultaneous use of several types of communication, to illuminate. A special feature of the video quality score is that it does not reference signal. Thereby, subjective assessments were transferred to a complex algorithm an appropriate video data. Enter into him among other things also bit rate and packet loss – the maximum value is 5.
If you book entertainment, receives a package from Internet, fixed network Flatrate and channels. Television is in the basic variant mainly in standard definition, high resolution one is confined mainly to ARD, ZDF and Arte. The HD Starter Kit costs 4,95 euro with eleven private HD channels in a month, until the end of August it is free as a promotion a year. The Bundesliga is there with League total to 14.95 or Dortmund is 19.95 euros per month (SD/HD) – for fans of the old and new master even its own solutions available. In addition there are 3-D movies including more packages and a rich video-on demand.
HD now with less speed
Yet not so old hat is that one can use HD channels with a normal 16.000er-DSL line instead of VDSL. However, there is a catch: you must decide so far in the menu between HD and SD quality. Record a TV station and a look at others, works only for SD reception. No wonder, because the bit rate amounted to the HD channels ARD, ZDF, used by us to measure and Arte at 8.6 Mbit / s – which TV absorbs more than half of the bandwidth. With a VDSL-50 connector, as we have used it in the test, you must however not worry about.
Much effort for fast zapping
Looking a channel specifically or zaps it through the program? This question is answered everyone individually. Vielzapper are entertain but to the right place: more than twice as fast as in Vodafone’s going through the channels. Reason: in addition to the Central video headend, which emits all stations as multicast, Deutsche Telekom has multiple caching servers distributed over Germany, which also provide the complete program. They intervene even with packet loss to ensure supplies quickly. A new transmitter is required, the nearest caching server establishes a direct unicast connection. Later these passes then seamlessly routed multicast stream in from the headend from to the receiver. Also a full screen is sent first (I-frame) of used h. 264 encoding of videos is the basis for displaying an image. At Vodafone passes may be some time until an I-frame required for the first time display. In sum, this effort means switching more than twice the speed as at Vodafone.
Slightly slower device, however, the start of MR. 303 receiver box. It takes 4.48 seconds, until a picture appears on the TV – Vodafone enters the cut in half of the time on tour. By the way: If boot or zapping, parallel data load influenced the measured values only marginally. That was true even when the video quality score, resulted in the two test candidates good values, so that the image quality should probably rarely be reason to complain. Thanks to well dissolved prioritization of TV consumption not had also on the phone, a problem, had to contend with the Vodafone at least temporarily.
With the Telekom entertain offers not only the ball is rolling fast across the screen, rotate fix also the channels. There you may forgive also, that the startup takes somewhat longer. On the
Video quality there is nothing to complain about, especially there suffered no serious picture dropouts. Only the basic HD transmitter equipment is somewhat thin, for the Telekom offers video library even more lush selection.
The concept is clever – who has even a satellite dish on the roof, can the TV Center on the Vodafone-set-top-box, 1000, DVB-S signal received. the same applies to analog cable television. The box on the best type of reception will change depending on the available bandwidth. It so happens that Vodafone can offer its IPTV service for DSL connections from 6 Mbit / s. Nonetheless, for the connect test the probably more frequent application in focus, following fully using the triple play the thoughts on IPTV.
Much for little money
With Vodafone TV, you can get a wide range of channels with 18 HD channels from the outset. However you have to forgo the Bundesliga – possibly after 2013, because Vodafone has already withdrawn from the bidding. However, you want to negotiate with rights holders on a cooperation following the award. Much easier filling the video store likely make there, so far it is however significantly narrower equipped as the Videoload offer of entertain. There are also features on the pure TV consumption, in the expansion. So Vodafone is working on access to content in the cloud or in the home network, the necessary interface brings the box already. Speaking of box: your purchase is covered with around 20 euros, more monthly service charges for the hardware do not arise. Since you like get over’s, that the built-in 320 GB hard drive offers a slightly lower capacity than that of the Telecom-box.
Fast hardware, fixed start
Whether the faster launch of Vodafone TV alone on the operating system based on Linux or also on other hardware components, we can not say. The fact is that one has a screen average after two seconds. Although the volatility as in the zapping was greater than at the Telekom, but even in the worst case, Vodafone bettered the entertain start time. The fluctuation in the absence of caching servers is responsible for as channel change to a large extent, which exclusively transferred the content. A much broader distribution of the switching times between programmes, which are only in the best case to entertain level proved so here too.
The fact that at Vodafone after switching to first the sound is heard, before the image can be seen is, however, independent of the Web page. Entertain it is the opposite. Because this process in the box, he does not enter into the measurement. Unlike of the video quality score: he dropped at data load more often under the critical for visible errors value of 4, mainly due to the higher packet loss. Bandwidth-critical HD signals this trend intensified suggesting that there is further potential for optimisation in terms of prioritization. Nonetheless, at the end of the realization that Vodafone must hide in terms of video quality not behind the Telekom.
With his offer, Vodafone offers the cheaper entry into the world of Internet television. In times where flat screens almost are standard with full HD resolution, it is commendable that many HD channels in the basic package are included. While there is still room for improvement on Web page, who isn’t much zaps has yet almost no disadvantages compared with the Telekom-entertainment offer.
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