Voice Ports
Voice ports on routers and acceptance servers claiming accurate telephony changeabout connections
so that delivery calls and their associated signaling can be transferred complete amidst a packet
network and a circuit-switched adjustment or device. For a delivery anxiety to occur, certain
information allegation be anesthetized amidst the telephony accessories at either end of the call, such
as the on-hook cachet of the devices, the availability of the line, and whether an incoming
call is aggravating to adeptness a device. This admonition is referred to as signaling, and to process
it properly, the accessories at both ends of the anxiety segment, which are afresh affiliated to
each other, allegation use the above acquaint of signaling.
The accessories in the packet adjustment allegation be configured to aback signaling admonition in
a way that a circuit-switched adjustment can understand. They allegation additionally be able to understand
signaling admonition that is acclimatized from the circuit-switched network. This is
accomplished by installing acclimatized delivery accouterments in a router or acceptance server and by
configuring the delivery ports that affix to telephony accessories or the circuit-switched network.
Figure 3-8 shows archetypal examples of how delivery ports are used.