Many businesses today use PBX, or Private Branch Exchange, for their phone systems because it saves the cost of installing an individual outside line for each user. Instead, the system allows individual users to share a number of outside lines and create internal connections seamlessly, all using the digital power of VoIP (for the most part – some companies still have legacy, analog PBX systems). Like any technology, however, PBX can have its small technical issues, specifically jitter (disarranged sound on the call), latency or lag, and interference. Luckily, many of the most common issues in your PBX phone system you can troubleshoot yourself with these steps.