Adnan Ghayas

Hi, I’m Adnan. I started Commsbrief in 2017 to make telecom concepts easier for professionals and businesses to understand. My goal has always been to break down complex topics, whether through blog posts, YouTube videos, or the training and consulting services I now deliver at Commsbrief Limited. For over 18 years, I’ve led product management, delivery plans, pricing strategies, and roadmaps for both new innovations and mature services in the telecommunications and media industries. In doing so, I’ve worked across a wide range of technologies, including mobile network systems, small cells, RF optimisation tools, mobile broadband, unified communications (UC), business tariffs, e-SIM, mobile video platforms, media boosters, cloud-hosted collaboration apps, TV apps, AI/ML integration, and AR-driven solutions for music and video. I’ve worked with leading mobile operators, vendors, and media companies, including Vodafone, Deutsche Telekom (T-Mobile), Ericsson, Telefónica O2, and Sky UK. My core strength lies in bridging the gap between technical capabilities and business outcomes—a focus I’ve carried into my work at Commsbrief, where I simplify complex telecom concepts for professionals and businesses. My journey has taken me to different parts of the world through living and working in Europe and Asia, and collaborating with teams physically and remotely in North America, Africa, and Oceania. This global experience allows me to adapt to markets with varying levels of maturity to deliver impactful solutions tailored to their needs. Through Commsbrief, I deliver training programs like the Business Case Masterclass and the Mobile Communications Masterclass, along with consulting services in mobile communications and business case development. My aim is to help professionals and businesses simplify complex challenges, work with clarity, and avoid unnecessary stress, so they can enjoy the work they do in high-tech industries.

Base Station Subsystem vs Network Switching Subsystem in GSM

BSS and NSS in GSM networks are subsystems that consist of various network components to support radio and core network functions. BSS deals with the mobile radio network whereas NSS deals with the mobile core network. BSS in GSM networks refers to Base Station Subsystem which is essentially the radio access part of a GSM […]

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GSM vs CDMA: Difference between GSM and CDMA mobile networks

Mobile networks have used several cellular technologies worldwide for their evolution from 1G through to 5G. During the 2G and 3G eras, two distinct tracks were created for the future development of mobile networks. These tracks, GSM and CDMA, continued to progress separately until 4G LTE was introduced to streamline the future growth of mobile

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HSPA, HSPA+ and LTE: Are HSPA and HSPA+ the same as 4G LTE?

HSPA, HSPA+ and LTE are three different technologies; however, the use of these terminologies, especially in the context of marketing, can often cause confusion. So let’s dive into each of these technologies to determine what they are and what you can expect from them. HSPA (High-Speed Packet Access) is a 3G enhancement that improves the

HSPA, HSPA+ and LTE: Are HSPA and HSPA+ the same as 4G LTE? Read More »

Mobile broadband: How mobile internet works in 3G, 4G and 5G

Mobile internet nowadays is as good as any high-speed internet service. However, while 3G, 4G and 5G mobile networks can enable high-speed mobile internet, the 5G networks (fifth-generation) can offer average download speeds of between 150 Mbps and 200 Mbps. Mobile internet, also known as mobile broadband, uses the packet-switched technology within 2G, 3G, 4G

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Roaming and international calls, SMS and mobile data

When we use cellular services through our mobile phones in other countries or when we try to contact someone in other countries, then the roaming and international services become applicable. If you travel internationally or contact people abroad through your mobile phone, it is important to understand the concept of roaming and international calls, text

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Radio Access Network (RAN): GERAN, UTRAN, E-UTRAN and NG-RAN

The radio access network (RAN), also known as a radio network, is one of the most fundamental parts of the overall mobile cellular network. It creates a wireless connection between the SIM-enabled mobile cellular devices and the mobile network. A Radio Access Network (RAN) is an essential part of the mobile network which uses radio

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