Soweto Wireless

Celebrating 20 years of Wireless Access Providers Association #Wapaonline 2026...

When you insert your SIM into a phone, the phone talks to it like it would talk to a small processor. Here’s what’s really happening behind the scenes. The phone first supplies power to the SIM through VCC and GND, just like turning on a tiny device. Then it sends a clock signal to control timing and a reset signal to wake the SIM up. After that, everything happens through the DATA line, which is where commands and responses travel back and forth. So your phone literally asks the SIM questions like: “Who are you?” “What network do you belong to?” “Here’s a challenge, prove you’re the real subscriber.” And the SIM calculates answers using secret keys stored inside it. That’s how authentication happens. Your SIM stores things like your IMSI (your real subscriber identity) and cryptographic keys. When you power on your phone, the network challenges the SIM. If the answers match, you’re allowed on the network. If not, you’re blocked. This is also how SIM locks work. When a phone is “network locked,” the phone checks the SIM’s identity. If the SIM doesn’t belong to the allowed carrier, the phone simply refuses to talk to it. Not because the SIM is bad, but because the phone’s software says “not authorized.”

#Too much Wi-Fi weekend in #Sosha...

@SowetoMagazine @GP_DHS @OfficialSASSA @GovernmentZA @biphakathi @RealBlackCoffee #Great work, the app will be whitelisted on All the network operators mos?

We have completed @GP_DHS Website + Android + IOS prototype proposal for the department after our successful prototype app we did for @OfficialSASSA app 🥳🥳🥳... We keep on building apps for @GovernmentZA hopefully to be recognized... @biphakathi @RealBlackCoffee Innovation! ❤️

These students got internet at school… and they have amazing things to share! 💙 Explore real stories from students at connected schools in Giga-engaged countries worldwide. 🌍 🔗 Access: giga.global/impact/ #GigaImpact @UNICEF @ITU @chrisfabian

#AfricaTechFestival #Checked in# looking forward to the week of engagements...

@KayaON959 question for @Net99 are you planning to enable your network to be open access and allow local ISP's access...

#Top Consumption apps on our network...# We battling thou to get behind the Mik with the Ubiquity Console and see more analytics.....

Core Networking Concepts

#Breaking the Financial Divide of the Digital Divide #Self-Sustaining financing solutions for Community Connectivity reading....

The layers of OSI model

Network address transaction (NAT) explained.

Networking Protocols

#Spring Day Install #Breaking the Digital Divide on a daily basis...

ACCESS & TRUNK PORT!! . Please Like & Retweet..:) . #network #ccna #cisco

#Signal on (-68) as we continue to connect the unconnected...

#It was all about the Fibre stringing today...36F & 12F

WIFI for kids...

#Next Book on the radar....