What actually will bring the appearance of this product, we will learn in the coming months. One thing is clear – the telephony market will never be the same as before. As everyone knows, any drastic changes in the market entail the redistribution of “spheres of influence” and the client base.
What is Asterisk?
It would be wrong to think that Asterisk is just VoIP PBX. This is not quite true.
First of all, Asterisk is a platform on which you can build solutions of different levels for completely different tasks. How Linux is the core of the operating system, so Asterisk is the core of the voice data system.
Asterisk – a flexible platform for building solutions for voice transmission and processing.
In addition, Asterisk is a universal gateway between the different means of voice transmission. It supports:
- Connection of analog lines (PCI FXO / FXS cards);
- Connection of digital streams (E1 PRI);
- 323 support – the most common protocol for IP telephony;
- SIP support – a modern standard protocol for the transmission of voice data (RFC 3261);
- SCCP – the protocol used by Cisco in its Vo IP? Decisions
- IAX2 is a protocol designed specifically to save network bandwidth when transmitting voice traffic. Already with a single connection it saves more than 2.4kbit / s, when using IAX2 trunking it saves at least 2kbit / s for each stream;
- Asterisk allows you to connect to most of the equipment and voice communication software currently in use.
Using IAX2 trunking when sending multiple G.723 voice streams halves or more lowers bandwidth requirements and costs for traffic
And, which is also very important, Asterisk has an easily extendable architecture that allows realizing any functionality of modern digital PBX systems, as well as many features that are unavailable there.
Asterisk can be applied at the various levels and at various businesses
It’s a common situation when there are several offices, between which you need to organize the communication, especially in large organizations. Also, with particularly close partnerships between organizations, the telephone traffic between them becomes so large that it makes sense to establish a connection between their PBXs.
The most effective scheme of uniting the offices is the so-called “full link”, when Asterisk in each of the offices is connected to each of the other offices. Thus, the failure of any of the PBXs will not affect communication in other offices in any way.
Moreover, some user devices can be configured so that if the local PBX fails, they will be connected to any of the other PBXs. Thus, even in case of an accident, the telephone communication will work remarkably well.
PBX for a small ISP
One of the simplest and most valuable for the end user schemes is when a small provider agrees with a large provider about receiving traffic from it. The connection with a major ISP is established using IAX2 trunking (which saves bandwidth).
In addition, the calls within the network of this provider will go through it directly. Thus, it is possible to create the tariffs, that will be beneficial for both a large provider and a small one, as well as for the Client (with such a scheme, it is possible to form retail prices even lower than with the direct operation of a large operator with end customers).
PBX for a large IP-telephony provider
Large providers need a flexible, easily scalable platform, this is the most important thing. By using the IAX2 protocol, consolidating multiple servers into Asterisk into a single cluster becomes a very simple and effective solution.
In addition, they can easily aggregate channels from different providers in specific areas, thanks to the support in Asterisk of a large number of different protocols, thereby creating opportunities for lowering prices and increasing profits.
Currently using Asterisk allows to:
- Save on licenses to proprietary software (Asterisk is a free product);
- No dependence on the supplier – at the moment the number of companies providing services for the creation and support of solutions based on Asterisk is growing rapidly, and if the supplier starts to “break” the prices for its services, it can be quickly and painlessly replaced by another;
- Reduce costs for the Internet channel – the use of IAX2 more than halves the cost of communication channels, compared with SIP;
- Save on conversations between offices – combining offices with IP telephony can significantly reduce communication costs, especially if there are offices in different cities;
- Improve the quality of work of office communication – answering machines, automatic secretaries, voice menus, and many other possibilities are realized on the basis of Asterisk quickly and inexpensively.
And, quite briefly: thanks to Asterisk you can spend less, but get more money and time.