OpenBSC

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4315 discussions

GSM Silent call
by samir 04 May '26

04 May '26

Hi, I have read that silent-calls in GSM can be used to make a call to a target MS and listen to it without having the target knowing it. Is this theoretically possible ? If yes, can it be done in OpenBSC ?

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Cinema apk
by jw8920621＠gmail.com 03 May '26

03 May '26

Cinema APK (Cinema HD APK) is a popular streaming app offering free access to movies and TV shows in HD quality, with subtitles, offline downloads, and an easy-to-use interface for Android users worldwide. Cinema apk | streameast

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Reliable Economics Assignment Help Online Service for Students
by Lori Porter 02 May '26

02 May '26

Finding a Reliable Economics Assignment Help Online Service for Students at https://economicsassignmentshelp.com ensures that every academic task is built from scratch. This platform avoids recycled templates, focusing on a fresh architectural design to guarantee 100% originality. Experts develop unique logic for each economic theory, providing a distinct narrative that stays authentic. By prioritizing high-quality, custom research, the service delivers sharp and professional results that are never repeated, helping students achieve their goals with complete confidence.

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cmd2 update causing pySim-shell to fail
by bryan coxwell 02 May '26

02 May '26

Hi all, Just wanted to share an issue and a quick workaround I found for it in case anyone else has the same problem. I believe a cmd2 update is causing pySim-shell to fail. After installing it on a fresh install of Ubuntu Server 20.04 and getting the following error when I run "python3 pySim-shell -p0": >Using PC/SC reader interface >Autodetected card type: sysmoUSIM-SJS1 >AIDs on card: > USIM: a0000000871002ffffffff8907090000 >Traceback (most recent call last): > File "pySim-shell.py", line 512, in <module> > app = PysimApp(card, rs, opts.script) > File "pySim-shell.py", line 59, in __init__ > super().__init__(persistent_history_file='~/.pysim_shell_history', allow_cli_args=False, use_ipython=True, auto_load_commands=False, command_sets=basic_commands, >startup_script=script) >TypeError: __init__() got an unexpected keyword argument 'use_ipython' If you run into this you can fix it by uninstalling cmd2 and reinstalling cmd2 with "pip3 install cmd2==1.5". Best, Bryan

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Discovering Eaglercraft: A Unique Way to Play Minecraft in Your Browser
by adjacent.weasel.vpym＠hidingmail.net 01 May '26

01 May '26

If you’ve ever wanted to play a classic game without downloads, installations, or high-end hardware, you might be pleasantly surprised by a browser-based experience that feels surprisingly familiar. I recently came across a project called Eaglercraft, which recreates the essence of Minecraft directly in your web browser. It’s not an official release, but rather a community-driven effort to keep older versions of the game accessible and lightweight. Here’s how you can get started, what to expect, and a few tips to make the most of it. https://eaglercraftweb.com/ Getting Started: What Is Eaglercraft? At its core, Eaglercraft is a singleplayer and multiplayer Minecraft clone that runs entirely in your browser using JavaScript and WebGL. You don’t need to install Java, download launchers, or worry about system compatibility. Simply open your browser, navigate to Eaglercraft, and you’re ready to go. The game is based on an older version of Minecraft (around 1.5.2), so it won’t have the latest features like elytras or aquatic updates, but it retains the charm of early survival gameplay. The interface is straightforward: when you load the page, you’ll see options for singleplayer worlds, multiplayer servers, and settings. Singleplayer worlds are generated procedurally, just like in the original game, so you can jump into survival or creative mode immediately. Gameplay: What Works and What Doesn’t Playing Eaglercraft feels surprisingly smooth for a browser game. You move with WASD, use your mouse to look around, and left-click to break blocks. The crafting system is the classic 2x2 and 3x3 grid, so you’ll need to remember basic recipes if you want to build tools, furnaces, or shelter. Lighting and mob behavior are also well replicated—creepers still hiss, skeletons still shoot arrows, and zombies still burn in daylight. That said, there are a few differences. The rendering is slightly less polished than the official game, and you may notice occasional glitches with block transparency or mob pathfinding. Also, because it runs in a browser, performance depends on your browser and internet speed. Chrome or Firefox usually work best. If you’re playing multiplayer, you’ll need to find a server address that supports Eaglercraft clients—many communities list public servers on forums or Discord groups. Tips for a Better Experience Use a modern browser: For the smoothest performance, stick with Chrome, Edge, or Firefox. Safari and older browsers may struggle with WebGL rendering. Adjust your view distance: In the settings menu, lower the render distance if you experience lag. A shorter view distance can make the game run much more smoothly, especially on older computers. Play with friends: Multiplayer is where Eaglercraft really shines. You can join public servers or set up a private one using tools like “EaglercraftX” or “EaglercraftBungee.” This allows you to collaborate on builds or explore with others. Save your worlds: Singleplayer worlds are stored in your browser’s local storage. If you clear your cache, you’ll lose your progress. To back up your world, look for the “Export World” option in the menu and save the file to your computer. Explore creative mode: If survival feels too tough, switch to creative mode via the settings. You’ll be able to fly, access unlimited blocks, and build without worrying about health or hunger. A Final Word Eaglercraft isn’t trying to replace the official Minecraft, and it certainly has its quirks. But for anyone who wants a quick, free, and low-commitment way to mine, craft, and build, it’s a delightful throwback. Whether you’re revisiting old memories or trying the game for the first time, this browser version offers a surprisingly solid experience. Just remember to back up your worlds, play with friends when you can, and enjoy the nostalgia of a simpler blocky world.

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Re: AMR on E1 BTS with tw-e1abis-mgw
by Sipos Csaba 30 Apr '26

30 Apr '26

Hi Mychaela, The AMR capability works great with your drop-in MGW implementation, voice quality improved a lot. I also tested the FR/EFR part earlier, which also works as expected. CSD is definitely interesting, once I have at least two CSD capable devices, I will give that a try as well. We already tried with a Nokia MetroSite, and early next year I am planning to try with our UltraSite setup at the museum as well. Would be nice to be able to send fax on top of GSM :-) The OML dialect we have in Osmocom now (called "nokia_site") despite its name it supports old Nokia equipment up to Felxi EDGE, Multiradio and Multiradio10 (on E1), if anyone else is interested, so OML support is not limited to just the Nokia *Site family. Some of this stuff is still running in less fortunate countries... Little bit of tweaking will likely needed, but at least it is not a completely unknown part like AoIP. Regards, Csaba

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Sinking Your Way to Fun: A Look at 8 Ball Pool
by natural.lamprey.yagk＠hidingmail.net 28 Apr '26

28 Apr '26

Hey everyone! Ever find yourself with a few minutes to spare, looking for a quick and engaging way to unwind? Or maybe you’re a long-time fan of cue sports and want to scratch that competitive itch. Either way, virtual pool games offer a fantastic solution, and one of the most popular and accessible examples is 8 Ball Pool. It’s a game that perfectly blends simplicity with strategic depth, making it enjoyable for both casual players and seasoned pros. https://8ballpool3d.com/ What is 8 Ball Pool? At its core, 8 Ball Pool is a digital adaptation of the classic billiards game. The objective is straightforward: pocket all your designated balls (either solids or stripes) and then sink the black 8 ball to win. The virtual version takes this concept and layers on convenient features, allowing you to play against friends, random opponents online, or even AI, all from the comfort of your device. You can experience it for yourself at 8 Ball Pool. Gameplay: The Basics of the Green Felt Getting started with 8 Ball Pool is incredibly easy. When it's your turn, you’ll see an aim line that shows you where your cue ball will go and, crucially, where the object ball you're aiming for will travel. You drag your finger or mouse to adjust the angle of your shot, and then pull back the cue to set the power. It sounds simple, and it is! However, the real fun lies in mastering the nuances. You can apply spin (top, bottom, left, or right) to the cue ball, which dramatically affects its trajectory after contact. This is where strategy comes in. Do you want to stun the cue ball in place, draw it back, or follow through? These subtle adjustments can make all the difference between a successful pot and leaving your opponent with an easy shot. The game also features different tables and match types, from quick one-on-one challenges to larger tournaments, keeping the experience fresh and exciting. Each victory earns you coins, which you can use to upgrade your cue or unlock new tables, adding a satisfying progression system to the game. Tips for Sharpening Your Skills Ready to start sinking some balls? Here are a few friendly tips to help you on your way: Practice Your Aim: Even with the aim line, precision is key. Take your time to line up each shot carefully. Don't rush! Understand Spin: Experiment with different types of spin. A little top spin can send the cue ball forward after impact, while backspin can draw it backward, setting you up for your next shot. Think Ahead: Don't just focus on the current shot. Consider where your cue ball will end up and how it will set you up for subsequent shots. This is often called "position play." Safety Shots: Sometimes, the best shot isn't to pocket a ball, but to leave your opponent in a difficult position. These "safety shots" are crucial in higher-level play. Don't Be Afraid to Lose: Everyone starts somewhere! View losses as learning opportunities. Analyze what went wrong and how you can improve. Conclusion Whether you're a casual player looking for a fun distraction or a budding digital pool shark, 8 Ball Pool offers an engaging and rewarding experience. Its intuitive controls, strategic depth, and lively online community make it a fantastic choice for anyone looking to sink some balls and have a good time. So, grab a virtual cue, line up your shot, and enjoy the satisfying clack of the balls – you might just surprise yourself with how much fun you have!

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SMS: UCS-2 concatenation with UTF16 emoticons
by Keith 26 Apr '26

26 Apr '26

Hi all, I noticed that SMS with emoticons on the boundary of the concatenated segments are not displaying correctly on the destination handset. * - imagine the disaster when that kiss-blowing smiley face thing at the end of your SMS turns out as a diamond with a ? for the recpipient! OMG, the potential butterfly effect is too much to think about... :)) So... This is my analysis: We have 140 bytes for the message, less the 6 bytes for the user header data in the case of concatenated SMS , leaving 134 bytes. It's well know that this means 67 characters per segment for an SMS using UCS-2 encoding. But, it we fill the message with emoticons that are using 4 bytes per 'character', then we have space for 134/4 = 33 and a half. Ooops. Still, the destination handset should reassemble the message and stick the two "halves" of the emoticon together, right? - except I'm not observing this. To rule out us doing something wrong in osmo, I wonder might somebody else (who has an unlimited SMS package) from a commercial provider try sending some crafted SM from one emoji-enabled phone to another, something like this: 😱abcdefghijklmnopqrstuvwxyz123456789abcdefghijklmnopqrstuvwxyz123😱56789 That's likely going to get mangled by mailing list or your mua, so it is: [4 byte emoji]abcdefghijklmnopqrstuvwxyz123456789abcdefghijklmnopqrstuvwxyz123[4 byte emoji]56789 You could also try various messages filled with emojis. Of course, if you bring up your osmo network with SMPP-mirror you can watch the trace in wireshark, you'll see when the last emoji gets chopped in two. You could try the same message on osmo and your commerical network. If it's actually a problem of the phones, you should get [4 byte emoji]abcdefghijklmnopqrstuvwxyz123456789abcdefghijklmnopqrstuvwxyz123[two diamonds with ?]56789 Thanks! Keith.

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Front and back sides of an MSC
by Mychaela Falconia 26 Apr '26

26 Apr '26

Hello Osmocom community, I have a question about terminology that is not really specific to Osmocom, but is specific to GSM/3G/etc cellular industry, or whatever is left of it. An MSC in a GSM or 3G or any other circuit-switched cellular network has two sides: one side facing the RAN (A interface in GSM, IuCS in 3G), the other side facing PSTN or ISDN or BICC or SIP-I or whatever the fixed telephone network may be. My question: is there a general industry-wide agreement as to which side should be called the front and which should be called the back? To me it seems intuitive to refer to the A/IuCS side of an MSC as the front and the PSTN/ISDN/BICC/SIP-I side of the same MSC as the back. However, I am just one person, and I have no idea whether or not my view is intuitive to others. And it would even worse if the opposite convention happens to be widely used... Hence I am asking this community, in the hope that someone with more industry experience would know how telco network engineers casually refer to RAN-facing and fixed-network-facing sides of an MSC. For a long time I had the idea of building ThemWi MSC as a modular system (multiple processes talking to each other via sockets) with a stripped-down OsmoMSC derivative as the "central" component, and with a radically different placement of MSC-MGW. However, as I started working on more detailed design, I realized a major flaw in my originally envisioned architecture: my original approach to MSC-MGW would break TFO for AMR, specifically the dialogue between TFO-aware BTS and the TRAU equivalent in the MGW. I am now spinning a new architecture in my head, one which tentatively includes two dissimilar MGWs in the MSC. If my front vs back terminology is valid, then the front MGW (talking to AoIP user plane) would perform speech transcoding but become a transparent pass-through for CSD (basically a software-only, IP-based equivalent of a hardware TCSM colocated at the MSC site), while the back MGW would be a transparent pass-through for speech calls, but turn into a complex IWF for CSD. This tentative architecture exactly matches the placement of speech transcoding and CSD IWF functions in traditional hardware MSCs of TDM-based, before-AoIP world. But I need to know if I should keep these front and back terms, or swap them the other way around. M~

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About Ragdoll Drop
by valenzueladmalcolma＠gmail.com 23 Apr '26

23 Apr '26

Introducing Ragdoll Drop Ragdoll Drop is a physics-based puzzle game. Its most distinctive feature is the "ragdoll" effect – your character will freefall with limp joints, crashing into obstacles in a humorous and unpredictable way. This is the game link, play it: https://ragdolldrop.io Why is this game so appealing? - Realistic (but humorous) physics: Every collision is calculated according to the laws of physics, creating hilarious and absurd situations. - Highly entertaining: The feeling of watching your character overcome treacherous traps is incredibly satisfying. - Diverse difficulty levels: The game typically has hundreds of levels with increasing difficulty, from simple drops to challenging mazes. Ragdoll Drop Gameplay Guide Basically, your goal is simple: Get your character from the starting point to the finish line safely (or achieve the required score through collisions). Basic Controls - Drop your character: You'll start from a high position. Choose the right time and angle to drop. - Navigate while falling: Depending on the game version, you can use the mouse or arrow keys to slightly influence the direction of the fall or rotate your character to avoid sharp obstacles. - Utilize the environment: Use trampolines, windmills, or wooden planks to adjust your character's flight trajectory. Popular Game Modes - Reach the Goal Mode: Try to get your character to fall into the safe zone or the final target. - Score Challenge Mode: The more collisions and virtual "bones" you break, the higher your score (this is a highly entertaining mode). - Collector Mode: Collect stars or items along the way as drops occur to unlock new outfits.

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