A human engine has a torque curve similar to that of a steam engine, more or less, which is to say that it is flat until a certain critical rpm, at which point it begins to drop off, because the energy used in accelerating and decelerating massy components (legs) begins to take up all the energy produced.
Asterisk (PBX) Asterisk is a software implementation of a telephone private branch exchange (PBX); it allows attached telephones to make calls to one another, and to connect to other telephone services, such as the public switched telephone network (PSTN) and Voice over Internet Protocol (VoIP) services.
If you want to set up Calculate Directory Server as an IP dial system, you should use Asterisk, a software implementation of a telephone PBX released under the GPL licence, that supports various VoIP protocols.t this stage, your users in Moscow are already able to call each other, but you also have users on the Saint-Petersburg server they should be able to join as well. To allow this, you have to set up a connection between your two Asterisk servers.