Improper Internal Network Configuration

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Not Checking the Internet Connection
Many of the common problems faced with call quality, jitter, latency, and other disturbances can be traced back to the internet connection on which your PBX relies. Difficulty in diagnosing this problem is especially common for businesses that have relied on the same ISP for years without issue, forgetting that a iran telegram new PBX system will require high bandwidth and low system noise, and may call for an update in your plan, your ISP, or your ISP-provided hardware. Internet plans and equipment are typically measured and rated by download speed, however, PBX systems also require a high upload speed to enable optimal operation.

A common practice is to route all network activity for one business through a single network, which can make it difficult to properly configure the internal network for VoIP traffic. Using a single network is more likely to result in call quality issues as data packets being sent and received in other systems and areas require significant bandwidth allocation.

One way to avoid this sort of difficulty with internal network configuration is with policy-based network management, multi-protocol label switching (MPLS), and bandwidth reservation. However, this will only work if your current router is able to prioritize VoIP traffic. If it isn’t capable of prioritization, it may be necessary to invest in and install a new specialized VoIP router that can be configured appropriately to avoid call quality issues such as latency and jitter.

Not Prioritizing Quality of Service (QoS)
QoS ensures that voice data transmissions take priority over any non-voice uses of bandwidth, allowing businesses to maintain a consistent quality of voice communications. QoS may include dedicated bandwidth, optimized networking to reduce congestion, setting network-wide traffic priorities and rules, and using fiber or dual broadband connections to ensure adequate call quality.