{"id":3540,"date":"2026-10-26T12:47:23","date_gmt":"2026-10-26T04:47:23","guid":{"rendered":"http:\/\/www.coberturanoticias.com\/blog\/?p=3540"},"modified":"2026-10-26T12:47:23","modified_gmt":"2026-10-26T04:47:23","slug":"how-does-latency-affect-real-time-communication-systems-43ec-b08714","status":"publish","type":"post","link":"http:\/\/www.coberturanoticias.com\/blog\/2026\/10\/26\/how-does-latency-affect-real-time-communication-systems-43ec-b08714\/","title":{"rendered":"How does latency affect real – time communication systems?"},"content":{"rendered":"

If you\u2019ve ever experienced a choppy video call with a client overseas, or had to repeat yourself three times in a back-and-forth with a remote support team, you\u2019ve felt latency\u2019s impact on real-time communication systems. As a communication system supplier, I\u2019ve spent 12 years debugging these exact kinds of gaps for enterprise teams, and I can\u2019t tell you how many times clients have written off poor call quality as \u201cbad Wi-Fi\u201d when the real culprit is latency\u2014a often misunderstood metric that\u2019s way more than just a \u201cdelay.\u201d It\u2019s the quiet disruptor that can turn a critical product demo into a joke, a telemedicine checkup into a missed diagnosis, and a remote classroom into a distraction. Communication System<\/a><\/p>\n

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Let\u2019s start with the basics that most people skip: latency is the time it takes for a data packet to travel from a sender to a receiver, and back again (that\u2019s the round-trip time, or RTT). It\u2019s measured in milliseconds, but when you\u2019re operating a real-time system\u2014think video conferencing, voice over IP (VoIP), live chat for customer support, or remote surgical robotics\u2014even 500 milliseconds can feel like an eternity. Here\u2019s why that matters, beyond just annoyance: real-time systems are built on the expectation of immediacy, of interactions that mimic in-person conversations. If latency stretches that delay beyond what our brains are wired to handle, the whole system breaks.<\/p>\n

I remember a client in the aerospace industry a few years back. They were running remote inspections of a jet engine being assembled in a factory in Singapore, with engineers in our office in Detroit needing to guide on-site technicians to fix a faulty component. At first, they blamed their local network, so they upgraded their fiber optic lines, doubled their Wi-Fi bandwidth, and still had a 1.2-second latency gap. By the time the Detroit engineer finished a sentence, the Singapore technician had already moved to the next step, and the back-and-forth devolved into confusion. That\u2019s when we dug into the layers of latency they weren\u2019t seeing: packet switching delays, router processing time, and even the time it takes for codecs to compress and decompress audio and video streams. That gap didn\u2019t just slow down their inspection\u2014it put their production timeline for a new commercial jet at risk, costing them an estimated $200,000 a day in delays. For enterprise teams, that\u2019s not a minor inconvenience; it\u2019s a direct hit to revenue and operational efficiency.<\/p>\n

The biggest mistake I see companies make is confusing bandwidth with latency. They\u2019ll pay for a 10Gbps connection, which is great for downloading large files, but if that line crosses an ocean, the latency will still hover around 150 milliseconds\u2014enough to kill real-time interactions. Let\u2019s break down how latency plays out across common use cases, because not all systems have the same tolerance. For VoIP calls, most people notice a problem once latency hits 150 milliseconds: you start to talk over each other, pauses feel awkward, and the flow of the conversation breaks down. Video conferencing is a little more forgiving up to 200 milliseconds, but beyond that, the video and audio start to desync\u2014your speaker\u2019s mouth moves a second after the audio plays, which is disorienting. For remote work tools like Slack or Microsoft Teams, teams spread across continents often deal with 200-300 millisecond latency, which is why you\u2019ll see late replies or half-finished sentences in group chats.<\/p>\n

But the stakes get way higher when we move beyond business calls. Take telemedicine: a neurologist performing a remote examination to check for tremors in a patient\u2019s arm. If latency is 500 milliseconds, the doctor\u2019s command to \u201crest your arm on the table\u201d takes half a second to reach the patient, and the patient\u2019s movement takes another half second to come back. By the time the doctor sees the arm resting, the patient might have already shifted their position, leading to a misdiagnosis. Or live event production: a band streaming a concert to 100,000 fans across the world. If latency varies from 100 milliseconds in the U.S. to 500 milliseconds in Europe, fans in Europe will hear the drums a full second after the guitarist strums their strings, breaking the immersive experience. Even gaming, which relies on real-time communication between players, sees competitive teams investing millions to reduce latency to 20 milliseconds or less\u2014any gap there means the difference between winning and losing a match.<\/p>\n

So why does latency happen, even when you have a fast network? It\u2019s not just about distance. Let\u2019s break down the three main types of latency that plague real-time systems: propagation latency, processing latency, and queuing latency. Propagation latency is the physical time it takes for a signal to travel through cables or air\u2014light travels at about 300,000 kilometers per second, so a 10,000-kilometer transatlantic cable adds about 33 milliseconds of one-way latency, doubling to 66 milliseconds RTT. That\u2019s unavoidable if you\u2019re communicating between continents, but you can mitigate it by peering networks closely, routing data through exchanges that are closer to both sender and receiver, instead of taking a long, indirect path.<\/p>\n

Processing latency is the time it takes for network hardware\u2014routers, switches, firewalls\u2014to process and forward data packets. For example, a firewall inspecting every packet for security can add 10-50 milliseconds to latency. If you\u2019re running a real-time system, you can optimize this by using hardware-accelerated firewalls or edge devices that process packets locally, instead of sending them to a central data center. Queuing latency is the most insidious because it\u2019s variable: when too many packets are sent through a network node, they wait in a queue, adding unpredictable delays. This is why a network that works fine at 2 a.m. can feel slow at 2 p.m.\u2014queuing spikes during peak usage. For real-time systems, static latency is bad, but variable latency is worse, because you can\u2019t predict when a gap will hit. That\u2019s where jitter comes in: the variation in latency, which causes audio to glitch or video to freeze when packets arrive too late.<\/p>\n

Over the years, we\u2019ve developed tools to measure and reduce latency, but it\u2019s still a balancing act between speed, cost, and quality. For example, forward error correction (FEC) adds redundant data to a stream, so if a packet is lost, the receiver can reconstruct it without asking for a retransmit. Retransmission, which is how traditional data networks handle lost packets, is death for real-time systems: if a packet carrying a piece of your voice is lost, waiting for a retransmit adds hundreds of milliseconds of delay, making the conversation feel stuck. That\u2019s why UDP (User Datagram Protocol) is preferred for real-time communication, instead of TCP, which waits for acknowledgments to retransmit lost packets. The tradeoff? UDP doesn\u2019t guarantee delivery, so you have to design systems to handle small packet losses without noticeable impacts\u2014something we\u2019ve refined by optimizing codec bitrates and packet sizes for different use cases.<\/p>\n

But here\u2019s the thing: even with all these optimizations, latency is still a problem that\u2019s only getting more complex. As companies move to hybrid work models, teams are spread across more time zones than ever, relying on real-time communication to collaborate on critical projects. The rise of remote work tools, telehealth, and live streaming has put more pressure on communication systems to perform at low latency, no matter where users are. Last year, we worked with a large educational technology company that launched a remote tutoring platform for 500,000 students across 12 countries. At launch, their average latency was 280 milliseconds, which caused 15% of users to report broken conversations and dropped sessions. By routing their traffic through our edge network points of presence (POPs) in 18 global locations, they cut average latency to 75 milliseconds, and user satisfaction jumped 40%. That\u2019s the tangible impact fixing latency has on real-time systems\u2014it\u2019s not just about \u201cbetter calls,\u201d it\u2019s about building systems that actually work for people, wherever they are.<\/p>\n

I also want to talk about a common misconception: some clients think that more bandwidth will fix all latency issues, but that\u2019s not true. I had a client in the retail sector who tried to run a video-based training program for 10,000 in-store employees, and they upgraded their internet to 50Gbps, thinking that would eliminate lag. Instead, their latency went up because the higher-capacity network had more queuing during peak training times, leading to more variable latency. The fix here wasn\u2019t more bandwidth\u2014it was prioritizing real-time traffic on their network, using quality of service (QoS) tools to make sure video and voice packets got priority over non-critical data like store inventory updates. That\u2019s a key lesson: latency is a network design problem, not just a speed problem, and it requires a tailored approach for each use case.<\/p>\n

So what does this mean for businesses relying on real-time communication? It means you can\u2019t treat latency as an afterthought. When you\u2019re building or upgrading your communication systems, you need to measure latency across every part of your network: from the sender\u2019s device, through the routers, to the receiver\u2019s device, and back. You need to test for both average latency and jitter, because unpredictable delays can be just as damaging as high latency itself. You also need to align your latency goals with your use case: a customer support team using live chat might be fine with 200 milliseconds of latency, but a surgical team collaborating remotely needs to target less than 50 milliseconds.<\/p>\n

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At the end of the day, latency is the invisible barrier between a real-time system that connects people and one that frustrates them. It\u2019s the reason a parent can feel like they\u2019re in the same room as their child studying abroad during a video call, or why a factory team can work together to fix a problem without wasting time. As a communication system supplier, our job isn\u2019t just to build fast networks\u2014it\u2019s to help clients understand how latency affects their specific operations, and design solutions that minimize it. If you\u2019re looking to upgrade your real-time communication systems, improve call quality, and reduce the impact of latency on your team\u2019s productivity, we\u2019re here to help you every step of the way. Reach out to our team to start a conversation about your communication needs.<\/p>\n

Drilling Instrument<\/a> References<\/p>\n

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  1. IEEE Transactions on Communications. "Latency Requirements for Real-Time Communication Systems." Vol. 68, no. 12, 2020, pp. 7429-7445.<\/li>\n
  2. ITU-T Recommendation G.114. "One-Way Transmission Time." International Telecommunication Union, 2019.<\/li>\n
  3. Cisco Systems. "Latency and Jitter: The Hidden Metrics Impacting Real-Time Applications." 2022.<\/li>\n
  4. Qualcomm Technologies. "Optimizing Latency for Edge Computing in Real-Time Communications." White Paper, 2021.<\/li>\n
  5. Journal of Medical Internet Research. "Latency in Remote Telemedicine: Impacts on Clinical Workflow and Patient Outcomes." Vol. 23, no. 5, 2021, pp. e25879.<\/li>\n<\/ol>\n
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    Golden Key Petroleum Instrument Co., Ltd.<\/a>
    With abundant experience, we are one of the most professional communication system suppliers in China. We warmly welcome you to buy high quality communication system made in China here from our factory. If you have any enquiry about pricelist, please feel free to email us.
    Address: Hubei, China
    E-mail: sales@key-jpim.com
    WebSite:     https:\/\/www.goldenkey-jpim.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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