A straightforward approach to troubleshooting VoIP that can be applied to video as well. VoIP is particularly sensitive to packet loss, and determining the cause of the packet loss can be difficult.

Voice over IP (VoIP) is the descriptor for the technology used to carry digitised voice over an IP data network. VoIP requires two classes of protocols: a signaling protocol such as SIP, H.323 or MGCP ...

Some cavalierly refer to IP telephony as “just another application” that rides over your data network. But wait and see what happens if VoIP call quality starts eroding or, worse yet, if your ...

The WAN optimizer is hardware designed to reduce bandwidth consumption. WAN optimizers are designed for TCP traffic, which dominates the IP network. TCP traffic has a lot of redundancy and can be ...

Following up on the VoIP quality issues that we discussed in last week’s newsletter, this week we’d like to take a deeper dive into some of the possible problems that can make VoIP call quality ...

In Part 1 of this article, we laid out the throughput and delay problems that can occur in a wireless LAN (WLAN). Now, in Part 2, we'll further the discussion by looking at the impact of throughput ...