science

GoIP

GoIP is a 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 GoIP rather than just read about it. In short: GoIP is a GSM-gateway[1] and SIM bank produced by the Hybertone and DBL technology companies. It enables connections between the GSM network and VoIP.

Key takeaways

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

Reference excerpt

GoIP is a GSM-gateway[1] and SIM bank produced by the Hybertone and DBL technology companies. It enables connections between the GSM network and VoIP.

Usage concept Sim-card is put into GSM-gateways (or SIM-bank connected to GSM-gateway) in order to register it with the GSM network, at the same time the gateway is associated with VoIP through program switch. Accordingly, the traffic can be converted in and out between GSM and VoIP channels. SIP and H.323 protocols are used for media traffic termination. GoIP equipment is compatible with all main IP PBX: Asterisk, Mera, Oktell, 3CX, etc. Compared with PSTN, GSM-gateways provide a drastic economy by amending the infrastructure and lowering the expenditures on technical support. GoIP includes integral support of SIP and H.323 protocols with flexible settings. Duplex authentification of password and trust-list backup will significantly decrease telecommunication expenditures while maintaining an adaptable system of call transfer. The GoIP gateway supports several devices' groups, with flexible settings of large GSM-gateways groups with different channels.

There are several models of GoIP GSM gateways

1 Port GSM VoIP Gateway, 4 Port GSM VoIP Gateway, 8 Port GSM VoIP Gateway, 16 Port GSM VoIP Gateway, 32-Port GSM VoIP Gateway. 64 Ports GSM VoIP Gateway, Applications of GoIP gateways: They are vastly usable by system integrators, TCP, call centers, large and little companies, and domestic users of VoIP as well. VoIP-GSM gateways produced on the GoIP platform help to accomplish the following: Adding the mobile lines in the existing telephone system (GoIP provides a GSM network between telephone systems and IP PBX, and ensures a fast connection to PSTN where usual telephone lines are unavailable) Organization of outbound call-centers Call transfer from GSM into SIP and backward (inbound and outbound calls between GSM and VoIP)

Determination of SIM-bank SIM-bank is a SIM-card controller that provides remote control over VoIP GSM gateways and allows to simplify and automatize many procedures likewise: - fast connection of SIM cards to the gateway, rapid exchange of SIM-cards via the Internet, and their prearranged synchronous replacement. The cooperative use of GoIP gateways and GoIP SIM-bank enables the management of unmanned devices and reduces the work pressure in SIM-cards operations, for example, SIM-cards replacement and replenishment.

The remote access advantages for SIM cards Centr their dynamic allocation, no need to change or reinsert the SIM card in the device, rapid replacement of SIM cards with no breakdowns in service. For instance, the remote GoIP gateway will no longer require the replacement of SIM cards in the device or their reinsertion. One can manage the group of GoIP gateways remotely, effectively, and with the minimal loss with the help of a SIM bank. The main advantages of SIM-bank appliances include 1) the replacement of SIM cards in gateways channels that are territorially remote from the very SIM bank and other gateways in order to transfer the SIM cards between the base stations of GSM operator and 2) autonomous work that supports from 32 to 128 channels for SIM-cards independent connections. Sources:

GoIP Series GSM VoIP Gateway User Manual Archived 2016-03-04 at the Wayback Machine GoIP Configuration Guide GoIP User Manual Archived 2016-03-04 at the Wayback Machine

Worked examples

Example 1 — a first encounter with GoIP

Start with the simplest possible case. Write down what GoIP claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In 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 GoIP 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 GoIP 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 GoIP

In research: GoIP appears in 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 GoIP 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: GoIP is common in secondary-school and first-year university syllabi. It links to neighbouring topics GSM standard, Voice over IP, so understanding it makes those chapters shorter.
In everyday life: Look for GoIP 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 GoIP in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what GoIP 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 GoIP out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GoIP in simple terms?

GoIP is a GSM-gateway[1] and SIM bank produced by the Hybertone and DBL technology companies. It enables connections between the GSM network and VoIP.

Why does GoIP matter?

Because it connects several 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 GoIP?

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 GoIP.