computer science

Ingate Systems

Ingate Systems is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ingate Systems rather than just read about it. In short: Ingate Systems AB is a Swedish company that sells data network security and telecommunication equipment. The company primarily provides SIP Trunking of IP PBX:s on the US market.

Ingate Systems — illustration

Key takeaways

Ingate Systems belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ingate Systems to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ingate Systems from memory before moving on to harder problems.

Reference excerpt

Ingate Systems AB is a Swedish company that sells data network security and telecommunication equipment. The company primarily provides SIP Trunking of IP PBX:s on the US market. It is associated with sister company Intertex Data AB.

History Ingate Systems was founded in 2001 as a joint venture between the Swedish companies Intertex Data AB, which had developed the first SIP proxy-based SIP aware firewall for the SOHO and SMB market, and Cendio Systems AB, which had developed the Fuego enterprise firewall. Ingate developed SIP-capable enterprise firewalls and SIParators®, Ingate's brand of Session Border Controllers (SBC:s). Intertex became sister company to Ingate, with joint development, and continued its development of its embedded products, Ethernet and DSL access routers for telecom service provider's volume deployment of SIP services to the home and SMB LAN:s – products that include firewall, SBC and IP PBX functionality. In the fall of 2012, the group companies Ingate and Intertex merged into current Ingate Systems, to join their efforts for global unified communication beyond traditional telephony using both the SIP standard and the emerging WebRTC standard and to cover the product range from home and SOHO to enterprise and carrier usage. Since 2006, Ingate has hosted the SIP Trunking-Unified Communications Seminars at the IXEXPO conferences. Ingate also participates in the SIP Trunking Community by TMCnet.

Products Ingate has a line of enterprise Session border controllers ranging from home and SOHO usage to enterprise and telecom service provider usage of up to 20,000 concurrent telephone calls. The SBC:s are often used for SIP Trunking, i.e. connecting enterprise IP PBX:s to telecom service provider's SIP based Voice over IP (VoIP) connections. A wide range of IP PBX:s and service providers are supported by the Ingate startup configuration tool. Unified Communications (UC) solutions such as the Microsoft Lync and Cloud computing solutions such as the Microsoft Office 365 are also supported. The Ingate products are all based on an SBC architecture where an IETF RFC 3261-compliant SIP proxy controls the NAT and firewall engine to route all types of media between parties on both public and private IP networks. All products include a routing SIP Proxy and a SIP registrar, and when required a SIP Back-to-back user agent (B2BUA), and can in addition to security at the enterprise edge, also do accounting by reporting usage in Call Detail Records. The Ingate products are not limited to VoIP but support full UC or multimedia real-time communication, and can route such communication over the Internet with or without service provider involvement. Products are being developed to also support and enable the upcoming WebRTC standard, an initiative by Google to bring high quality multimedia real-time communication directly into the web browser.

References

External links Ingate Systems official website Internet+, A Model for Global Unified Communication website Intertex Data official website

Worked examples

Example 1 — a first encounter with Ingate Systems

Start with the simplest possible case. Write down what Ingate Systems claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ingate Systems before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ingate Systems ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ingate Systems

In research: Ingate Systems appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ingate Systems in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ingate Systems is common in secondary-school and first-year university syllabi. It links to neighbouring topics Companies based in Stockholm, Companies established in 2001, Computer companies of Sweden, so understanding it makes those chapters shorter.
In everyday life: Look for Ingate Systems outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Ingate Systems in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ingate Systems means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ingate Systems out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ingate Systems in simple terms?

Ingate Systems AB is a Swedish company that sells data network security and telecommunication equipment. The company primarily provides SIP Trunking of IP PBX:s on the US market.

Why does Ingate Systems matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ingate Systems?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ingate Systems.