الأنواع المختلفة من أنظمة الهاتف IP

As for the different types of IP phone systems in terms of communication protocols, it is available for two reasons, namely:

Closed systems
Open systems

But before we touch on the different types of IP phone systems, let's first take you to the IP phone systems that work with VoIP technology, namely the VoIP PBX system.

ما هو PBX system

It is a specialized system for telephones, specifically for companies specialized in managing large businesses, both small and medium enterprises, even. There are two types of PBX system available, namely:

Traditional PBX system

It is a system that is used to communicate between devices located on local networks through the use of IP Internet Protocol.

نظام VoIP PBX

It works to cover a very large network of devices connected to each other through a wide area network (wide area Network).

PBX systems have witnessed a significant development, as it has become the most widely used and main technology among IP phone systems, especially when holding meetings, whether voice calls or even video calls.

Benefits of the PBX system

We can say that PBX systems provide great benefits, namely:

System-specific software application
The Call Blast feature
The possibility of making calls simultaneously for more than one call to the same number

Since when the phone is used through the IP Internet Protocol, the distinction of security systems programs the phone to allow making and receiving external calls.

Ability to make voice/ video calls
The ability to integrate voice with other applications, to greatly facilitate the process for employees

The different types of IP phone systems “voice transmission technology”

It should be noted that there are some rules and standards that need to be followed in the processes of making telephone calls through VoIP technology, which are as follows:

Closed systems

During it, reliance is placed on closed-source software such as (Skype), as it relies on closed-source protocols, most notably the following Cisco protocol:

Skinny Client Control Protocol SCCP

This protocol is characterized by being hermetically sealed, which was developed by the " Celsius company”, and perhaps the largest example of closed communication systems in IP phone systems is a series of phones (Cisco 7900)

Open systems

It is based on an open source protocol, such as:

Protocol H.323

It is a set of protocols characterized by its system developed by “ITU-T”, in order to carry out the process of transferring files (images/ audio) on the internet using Packet-Passed packages, and this protocol is used in many famous programs, such as the (NetMeeting) program.