Serverless solutions include such commercial shareware products as Vypress or Network Assistant. Their advantage is the relative simplicity of installation and use; they do not require any specific configuration to start working. These messengers are capable of providing the required level of security and reliability in a simple peer-to-peer network of up to 30 workstations. But whether they can function at the same level in complex networks is a big question.
Messengers use Broadcast and Multicast technologies in their work - these are communication technologies that use broadcasting. Their essence is that the program is both a server and a client, that is, messages are sent to everyone at once, including those to whom it is not intended. Because of this, there is an overload of network traffic, accordingly, the entire network may work unstably.
And what is most unpleasant, messages poland email list sent via such messengers may not be delivered to the addressee at all. In addition, there is no possibility of connecting the system to the Internet, as well as managing users and logging employee conversations from a single center. This happens on the workstations where the program is installed.
To use such messengers, it makes sense to install specialized switches in your network - they will filter group traffic, which can be automatically adjusted to transmit messages exclusively to recipients.
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Client-server systems
Client-server systems are the most suitable for corporate use. They allow working with combined networks with complex configurations (LAN, GPRS, Dial-up, WAN, VPN, Wi-Fi, etc.), thanks to which it is possible to create a common information space even with remote offices.
Such a system is under the control of the company's IT specialists or security service employees, which ensures the safety of data.
In addition, you don't have to worry about message delivery: client-server systems guarantee that the recipient will receive the information sent to him, even if he is not online at the time of sending. It will be saved on the server and will wait for the user to appear online.