Features of building virtual PBX

The article considers the features of organizing highly efficient telephone communication using cloud-based PBXs.
 advantages solutions based on IP-telephony compared to classical automatic exchanges are treated. It is shown that use a virtual PBX as separate configuration dedicated server will provide flexible system settings.
 virtualization model considered. analysis methods carried out and it noted result their development emergence multi-core processors, an increase in throughput computer interfaces, capacity speed data storage systems. each these differs hardware emulation finds its place depending application.
 A solution Asterisk software product considered for IP-telephony. environment setting discussed. proposed reliable PROXMOX VE infrastructure, which open source support live migration.
 Studies have been determine performance parameters technologies, namely, hypervisor container ones. main peak load OP assembly from binary files, requires significantly more resources (the increases by about 2 times) than preparation files. During CPU analysis, machine was found be very demanding. has proven machines with technology consume technology.