Services the Internet-telephony are services of transfer of speech on networks with packet switching on the basis of Internet Protocol. Transfer is carried out through a network the Internet with use of special terminals (sluices, IP-phones, SoftPhones). For connection of numbers it is necessary to have connection with the Internet with a speed not less than 64 kb/s under one telephone line.
Why such kind of communication is perspective?
First, use of this technology allows to lower essentially expenses for local, distant communication, reduces the price of workplaces. The IP-technology quickly pays off at its use for communication with the removed divisions, through existing liaison channels.
Secondly, the IP-technology allows to realize technically complex and economically effective decisions. Introduction of IP-services allows to create uniform corporate decisions for management of telecommunications.