Knowing how to spot and troubleshoot common VoIP problems can save you a lot of tech support headaches. So, before you reach for the phone to call technical support, try these out. The VoIP problem solutions here might just save a ton of your time and funds.
1) Choppy Voice
The common cause of choppy voice in VoIP is insufficient bandwidth. This does not necessarily point to your internet service provider as the culprit; nor does it mean there’s too much traffic in your network. It could be that you have another bandwidth-eating application running. You might also be using the wrong compression code.
Remember that a two-way conversation eats up around 90 kbps for both upload and download. Test to confirm that your bandwidth usage is causing choppy voice in your VoIP service.
There are different common causes of VoIP echo: acoustic, electromagnetic interference, and faulty equipment. Acoustic echo resides in the earpiece/speakers and mouthpiece of your phone; the earpiece volume is too loud and overpowers the mouthpiece. Electromagnetic echo occurs when your VoIP hardware is too close together. Bad equipment, on the other hand, creates “bounce back” from impedance variations.
To resolve VoIP echo issues, try these easy steps:
3) Jitter and Jitter Buffer
Jitter refers to the variation in the arrival time of voice packets. To ensure that conversations are understandable, the jitter buffer collects the packets first and then sends them to the receiver at an even pace. Sometimes though, the jitter buffer can be wrongly configured, which can result in dropped packets and low quality voice calls.
A hack that you can try here involves the dynamic jitter buffer, which is software-based and can be reconfigured. (The static jitter buffer is hardware-based.) Have your network administrator do the reconfiguration based on what you’re experiencing. Ideally, this should be set between 30 to 50 millisecond in depth.
Remember that packets are dropped when the buffer is too small. You will experience conversation gaps if this is the case. On the flip side, if the buffer is too big, you will experience increased delays in voice packet delivery.
4) Bandwidth-Related Problems
VoIP problems that are rooted to insufficient bandwidth allotment can be addressed by reconfiguring your router’s QoS. All modern routers allow access to the QoS, where an administrator can assign priorities to different types of applications.
5) Monitor Your Network and VoIP
To ensure that you’re on top of your VoIP’s performance, subscribe to a 24/7/365 VoIP monitoring service provider, such as VoIP Spear. These business services do round-the-clock testing of key VoIP performance parameters and send alerts when you need to take action. This way, you can do these simple troubleshooting steps yourself or, in worse cases, call your tech support.