IP PBX architecture

IP PBX architecture
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There are three different types of IP PBX architectures: IP, hybrid IP, and Legacy Time Division Multipler (TDM)
An IP architecture does all of its switching in the IP world which means no transcoding between the TDM bus and IP bus. Typically customers benefit from this type of architecture because it is scalable and additional hardware is not required to do the digital signal processing (DSP) to convert the media. Examples of this type of architecture are 3Com NBX, 3Com VCX, Asterisk, and Cisco Call Manager.
Hybrid IP
A hybrid IP architecture must convert its media between the IP and TDM world. This means more resources are required to do the transcoding. Typically these types of systems have certain limitations of how many IP phones can be used. Examples of this type of architecture are Avaya Communications Manager, Avaya IP Office, Nortel BCM, and Nortel Succession.
Legacy TDM switch
There is no worry about converting media between IP and the TDM bus as this is a TDM only solution. These are typically older type systems. Examples of this type of architecture are Avaya Definity, Avaya Partner, Nortel Meridian, and Nortel Norstar.
Another important part of IP PBX architecture is the Operating System used. There are really three OS choices:
Linux provides a strong platform for IP PBX platforms. While these systems are typically quite reliable training and installation costs are often significantly higher than other operating systems. Examples using Linux include 3Com VCX, Asterisk, and Alcatel Omni.
Windows allows products to more easily integrate with other applications. These types of platforms are typically less reliable and security patch maintenance is frequently a big issue. Examples using Windows include Cisco Call Manager, Nortel BCM, Siemens HiCom, Siemens HiPath, Toshiba Strata CS, Vertical Communications InstantOffice, and Vertical Communications TeleVantage.
Real-time operating systems are extremely reliable in terms of call completions. Oftentimes separate application servers are required to run other solutions. Since the applications are not on the PBX, there is less opportunity for an errant program to disrupt the call processing. Examples using this type of OS include VxWorks ñ 3Com NBX, Nortel Succession, proprietary OS ñ Avaya Definity, Nortel Meridian, and Nortel Norstar.
Types of PBX Systems
Virtual PBX providers
Hosted PBX
PBX systems hosted by the VoIP provider often have proprietary software in addition to VoIP service. In general, less server software is required. Other functions, such as CRM integration and IVR, still require software.
Managed PBX
On-premises PBX systems need server management of varying degree based on the PBX hardware. For example, a PBX system without certain physical components can use Asterisk or similar telecommunication server technology to replace hardware functions.
3CX is an entirely software-based PBX system which can be installed on-premise on Windows or Linux, on mini-PC or virtualized with VMware, Hyper v or KVM, or in the cloud with Google, Amazon, Azure and more. The software is open-standards and can therefore be used with a wide range of IP phones, gateways and SIP trunks. Additionally, 3CX includes a full suite of unified communications features including status, chat, video conferencing and apps for iOS, Android and the Web.
PBX software is often all-encompassing and widely customizable. There are also programs designed for specific purposes within a PBX system. See VOIP Software for individual types.
Proprietary vs Open Source
Proprietary systems are owned by one company, and usually (though not always) cost money. Open source software, on the other hand, is free to download, modify, and develop.
Large telecommunication companies like Cisco Systems dominate the market for network and servers. A popular open source alternative is Asterisk, though it too is held by a single company (Digium, Inc).
IP-PBX vs EPABX ñ Why to choose IP-PBX over traditional EPABX system?
Posted on September 13th, by Pratibha Gubrani 0 Comments
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IP-PBX vs EPABX – Why to choose IP-PBX over traditional EPABX system?
For many decades, EPABX was considered as the most viable mode of business communications. They were built on copper wires and run on POTS (Plain Old Telephone Services). Talking about the contemporary scenario, businesses want to expand their potentials and revamp internal & external communications. Therefore, the arrival of IP PBX has turned around the tables. An IP PBX is a PBX phone system that uses internet protocol instead of the traditional analog services. This blog will help you give a comprehensive discussion on IP-PBX vs EPABX or why to choose IP Telephony PBX PBA Doha Qatar (VOIP business phone system Doha Qatar) over traditional PBX systems to carry out business communications.
1. Installation is not at all tiresome task!
Since VOIP business phone system Doha Qatar are internet-based phone systems, the set up or installation is quite easy. Same network will be used for data and voice (connected via LAN) only.
On the other hand, with EPABX, installation through TDM cables sometimes becomes an issue. Apart from this, if you have decided to relocate your office, setting up an EPABX requires complete rewiring.
2. Maintenance/Configuration of IP PBX is just so simple!
In case of IP PBX phone systems, they come with easy to use web-based configuration interface. This makes them easy to manage or configure phone systems remotely. Any update in the software can be done via admin remotely.
While with EPABX, in case there arises any sort of technical issue, the person will have to go at that place physically in order to resolve it.
3. Scalability gets a new turn!
Traditional EPABX has limitations when it comes to expansion. Adding more phone lines means adding new cards into the system (It will require additional physical slots into the chassis). With IP Telephony PBX PBA Doha Qatar, itís very simple to add new extensions. By adding a simple license, you are good to go.
Also, Traditional EPABX is bulky in size. It requires a lot of space (almost the size of a big cupboard), while IP PBX can easily fit into a network rack.
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4. Integration with Productivity Tools:
Integration with business continuity apps, like CRM, outlook, email, IoT, Artificial Intelligence, API(s), CTI, etc. is possible with IP-based PBX only.
5. VoIP Support:
With VoIP softphone, you can use desktop or your smartphone for making calls using VoIP service. This implies that the costs spent on phone equipment can also be easily eliminated with softphones, which can be integrated with IP PBX. The same is not in the case with traditional EPABX.
Inter-Office Connectivity
Communications within the same organization, but located at different geographical locations, is possible only with IP based PBX. IP-PBX allows inter-office connectivity.
6. Business Continuity:
IP PBX also has following two benefits:
We can setup a backup IP PBX server, so that in case of fault, it will immediately switch to other server to maintain business continuity. This helps in achieving maximum up-time.
Virtual PBX can be run on the same servers as other business applications in virtualized data centers for better ROI of purchased Infra.
7. Advanced Features which are quite impressive!
Talking about traditional analog phones, they come with really basic functions. But the way businesses operate today with the aim of surpassing customerís expectations, the business phone systems should be the winner in the competitive ground. IP Telephony PBX PBA Doha Qatar comes with features, like- auto attendant, IVR, call recording, voicemail to email, LCD display, Multi-line keys, Softkeys, pre-programmable keys, PoE (Power over Ethernet), multiple LAN ports, video calling functionalities, unified messaging, contact center functionalities, mobile accessibility, audio conferences, teleworker and the list still continues.

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