Showing posts with label packet delay. Show all posts
Showing posts with label packet delay. Show all posts

Saturday, June 28, 2014

VoIP Call Quality Issues

When you transition to VoIP, be prepared to deal with typical service problems. These are natural conditions. Normally, you shouldn't experience any service disruption or distortions even when you have these. However, if you are with a so-so network or VoIP service provider, you will feel the effects of VoIP call quality issues.
  • Know about problems before they affect your day-to-day operations
  • Stay on top of how your VoIP service performs
  • Enjoy the full benefits of VoIP

Typical VoIP call quality issues should not affect your VoIP performance. For instance, latency, which is the delay transport of data/voice packets, is normal. Even traditional telecommunications experience latency. But if it goes beyond 150ms one way, you will definitely experience voice quality distortions.

For certain circumstances, you can address VoIP call quality issues yourself. Here are some tips:
Slow connection: This is one of the worst things to have when you want to use VoIP. Digital communications rely on your network connections. Fast connections mean that you can have unhindered conversations. When you suffer from slow connections, the best thing to do is upgrade your service. This means either getting a better service project with the same or a different service provider.

Bad equipment: It could be that you experience VoIP call quality issues and the problem is on your end. You may have the wrong router for prioritizing VoIP calls. Or, you may have outdated equipment that result in voice quality distortion. The best solution here is to upgrade to a better router wherein you'd be able to configure the QoS. With the router's QoS, you can prioritize VoIP. This lessens the bandwidth allotment for other applications, particularly the bandwidth-heavy applications ones, like gaming applications.

Delays: All forms of telecommunications experience delays or latency. The crucial issue is the length of delay. There's tolerable delay and there's delay that ruins your overall user experience. With VoIP, the two-way delay should only add up to 250ms. A rate above means that there is disruption every so often. The delays may even be causing dropped packets and gaps in the conversation.

There are several ways of dealing with delays, depending on the cause of delays. If the cause is on your end – your equipment may be out of date or defective, or your network and VoIP connections may be bad – these are situations for which you can implement fixes.

Cut wires and incorrectly setup equipment can be fixed by changing cable wires, or upgrading to a newer model.

Sometimes, too, a simple way of fixing delays is to set yourself up closer to your router. Connecting via wi-fi will cause delays and if its too much, all you need to do is go closer.

A surefire way of correcting delays caused by your system is by prioritizing voice packets. You do this by configuring your QoS. Most modern routers now come with QoS access where you can set how much priority is given to different applications. To prioritize VoIP, you just have to prioritize voice applications while reducing priority of bandwidth heavy applications, such as gaming applications.

To stay on top of how your VoIP performs, set up an account with VoIP Spear, a VoIP monitoring service that offers free trial accounts and personal, residential and business options.


Sunday, November 24, 2013

Dealing with Packet Delay

The wonders of VoIP is all for nothing if you experience network problems that compromise the quality of your calls. Problems like packet delays may be minor irritants if these happen once in a blue moon. However, if this is a chronic problem, you should do something about it.

The solutions, when it comes to packet delay problems, can either be with you or your service provider. Sometimes, you just need a little tweaking on your end to enjoy better VoIP.

What Is Packet Delay

Packet delay refers to the delay in the travel time of data packets between endpoints. This delay is natural up to a certain degree. After all, data packets go through a series of hardware, plus the wireline telephone system. In a healthy network, this delay is not perceivable. You can use your VoIP and conversation is clear and without pauses.

However, in problematic networks or setups, packet delays are perceived by users as delays in audio and video, echo, feedback, and pauses in conversations, among other problems. In really bad situations, packet delays can affect how you enjoy (or not enjoy) VoIP.

Types of Packet Delays

There are two main types of packet delay, namely End System delays and IP network delays. Of these two, you can tweak settings to affect some end system delay issues.

IP network delays are delays that occur during the packet transmission. This may be caused by too much network traffic or being on a network that’s inappropriate for VoIP. The delay usually between ten to a thousand millisecond.

End system delays happen in the handling of the packets at the endpoints. Here, data packets go through decoding, encoding and buffering, with buffering being the main culprit in delays. Jitter buffer delay can take up to hundreds of milliseconds. Coding and decoding, on the other hand, only takes up to 40 milliseconds of delays total.

How Monitoring Your VoIP Helps

When you monitor your VoIP through third party services, such as VoIP Spear, you can know the root cause of your communication problems and be able to deal with this accordingly. VoIP monitoring services do consistent tests over a period of time, at set intervals. This means that you get a complete picture of your VoIP’s performance and can get to the problem right away, either to deal with this yourself or to report to your service provider.

Tweaks to Minimize Problems with Delay

There are things you can do at your end to help lessen problems caused by packet delays. Remember, however, that these are only tweaks.

1.      1.  Lessen the “path” that voice packets go through. If you are connecting to your internet via wifi, connect directly to your router instead.

2.     2.  Close all other applications that use up bandwidth. When you want to focus on VoIP, stick to that for the meantime. Close all applications that are not connected to VoIP, especially the big bandwidth eaters: file sharing and gaming.


3.       3. Customize your QoS setup. Your QoS refers to a tool when you login to your router. This lets you set upload and download speeds, bandwidth priorities. When you want to enjoy VoIP, give voice and video application top priority. Deprioritize gaming and file sharing.