

QQ, an IM application similar to ICQ, is very popular in China.Īs well as standard IM functions, Skype also offers voice chat. The latest version of MSN Messenger uses version MSNP14. The MSNP2 protocol is publically available, although other versions are not publically available. MSN Messenger uses Microsoft Notification Protocol (MSNP, also known as Mobile Status Notification Protocol).


Microsoft’s MSN Messenger (or Windows Live Messenger) is another IM client popular with users in the West. Some other clients also make use of modified versions of this protocol to send messages, e.g. As a rule, a single message consists of one TCP packet. Messages are sent via the TCP/IP transport protocol using a format specially created by the developer Mirabilis. Each UIN is protected by a password set by the user. Every ICQ user has a unique number, or UIN (Unified Identification Number) that s/he uses to log on. The most popular IM client in Russia is undoubtedly ICQ – a playful abbreviation of the phrase “I seek you”. A number of IM clients (or Internet pagers, as they are sometimes called) offer additional features. There are lots of IM applications and almost all support the same basic functions, allowing a user to search for other users with similar interests, access personal profiles, choose a status mode, etc.

In order to use IM, a user needs an Internet connection and a client application installed on their PC. Instant messengers (IM), which allow users to talk to others anywhere in the world in real time, are one of the popular alternatives. all occupy their own specific place on the Internet. The multitude of options for communicating with others – email, chat, forums, blogs, etc. For many people, communicating online has become an integral part of daily life.
