Until recently, voice over IP (VoIP) had one pretty big limitation — to make a call, you had to be at a computer. New phones make it possible for people to place VoIP calls without being leashed to a computer. WIFI phones use the same wireless network technology that computers use, making VoIP a lot more portable.
Packet Switching and VoIP
VoIP uses packet switching rather than circuit switching. Instead of leaving an entire circuit open during the whole conversation, it breaks the conversation into small packets of data. It then transmits that data over the Internet. Instead of monopolizing a circuit, packet switching sends and receives data as needed.
WIFI phones – detail.
WIFI phones use different frequencies than cellular phones do. WIFI phones use the 802.11b or 802.11g standards transmit at 2.4 GHz. Phones that use the 802.11a standard transmit at 5 GHz.
When you make a call on a WIFI phone, you dial the number of the person you want to cal. If you’re calling another VoIP user, you may enter a VoIP address instead of a phone number, depending on the service provider’s requirements.
The phone translates the number you dial into packets of data. It uses radio waves to transmit the packets to a wireless receiver. The receiver passes the information over the Internet to the call processor like an ordinary VoIP call. When you begin your conversation, the phone transmits your voice in packets of data as well.
Many of these phones use a specific WiFi service or network. SIP is an open protocol. Anyone can use it, and anyone who has a SIP address can contact anyone else who has one for free.
Eventually, SIP will probably make communications tools interoperable. In other words, your computer, phone and other communications tools could all share the same address book and communicate with one another.
For more information call Ryan Danvers on 072 601 2858.
Windows 11 Upgrade - Will it work on your lapop?
So, you’re wondering about Windows 11, the latest version of Microsoft’s operating system. It looks snazzy and has some neat features. But can your current laptop actually run it? Don’t worry, you don’t need a degree in IT to figure this out! We at abacon IT in Cape Town are here to help you understand the basics.
Upgrading your laptop to Windows 11 can give it a new lease on life. However, Windows 11 has certain system requirements. These are the minimum specifications your laptop needs to have to run the software smoothly. Think of it like needing the right ingredients for a recipe – without them, it just won’t work properly.
One of the most important parts is your laptop’s processor, often called the CPU (Central Processing Unit). This is the “brain” of your computer. Windows 11 needs a fairly recent and capable CPU to function well.
Which Processors Work with Windows 11?
Here’s a simplified look at the processors that are generally compatible:
Intel Processors:
- Generally, Windows 11 requires an 8th-generation Intel Core processor or newer. You might see names like “Intel Core i5-8xxx” or “Intel Core i7-11xxx.” The first number after the “i” (or “i3”) usually indicates the generation. So, an “i5-8250u” is an 8th-generation processor.
- Intel also has its Pentium and Celeron processors. For Windows 11, only certain newer models are compatible.
AMD Processors:
- For AMD, Windows 11 requires Ryzen 2000 Series and newer. You’ll see names like “AMD Ryzen 5 2xxx” or “AMD Ryzen 7 5xxx”. Again, the first number after “Ryzen” indicates the series.
- AMD also has Athlon processors. Similar to Intel’s Pentium and Celeron, only specific newer Athlon models will work with Windows 11.
Important Note: This is a general guideline. There can be exceptions, so it’s always best to double-check your specific processor.
How to Find Out Which Processor Your Laptop Has
Don’t fret, Windows makes it pretty easy to see what CPU is inside your laptop:
- Right-click the Start Button: This is the Windows logo (usually in the bottom-left corner of your screen).
- Select “System”: A new window will pop up with information about your computer.
- Look for “Processor”: You’ll find this listed under the “Device specifications” section. It will tell you the name of your processor, including the manufacturer (Intel or AMD) and the model number, which usually indicates the generation or series.
Once you have this information, you can compare it to the general lists above.
Other Important Bits for Windows 11
Besides the processor, there are a few other things Windows 11 needs:
- RAM (Random Access Memory): Consider this your laptop’s short-term memory. Windows 11 requires at least 4 gigabytes (GB) of RAM. More is always better for smoother performance. Instead, consider 16 gigabytes (GB).
- Storage: To install Windows 11, you’ll need at least 64 GB of free space on your hard drive or SSD (Solid-State Drive). An SSD generally makes your computer much faster.
- TPM 2.0 (Trusted Platform Module): This is a security feature. Most modern laptops have this, but it’s worth checking. You can usually find information on how to check for TPM 2.0 in your laptop’s BIOS settings (you might need to consult your laptop manufacturer’s website for instructions on accessing this).
- Graphics Card: Your graphics card needs to be compatible with DirectX 12 or later with a WDDM 2.0 driver. Most reasonably recent graphics cards will meet this requirement.
- Display: You’ll need a screen with a resolution of at least 720p (HD).
Still Not Sure? We Can Help!
Figuring out all these technical details can be daunting. If you’re still unsure whether your laptop is ready for Windows 11, don’t hesitate to get in touch with us at abacon IT in Cape Town.
Our friendly team can quickly assess your system and give you straightforward advice. We’re here to help your SME thrive with reliable IT solutions! Contact us at 072-601-2858 or email info@abacon.co.za, and we will call you back.
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