Explaining Toll Bypass
Toll bypass is the ability of IP telephony users to avoid (or bypass) long-distance (toll) charges. The following figure illustrates where the fees are levied.
• Traditional telephony: Charges accrue for access to local phone carriers. In addition, a longdistance provider also collects a fee for transport over its system. If this company maintains a data network, it must also pay a different local provider for access to the data (IP) network.
• Unified Communications: With this method, a local service provider also charges for access, but in this case there is no charge for the long-distance transport of the packets or a charge for time spent using the network.
Traditional Phone
$ Charge
$ Charge
$ Charge allows some services to be carried over the data network, decreasing the need for separate PSTN circuits.
Data Packets
QoS Policy
The Network
Data Packets
Voice Packets Go to the Head of the Line
QoS Policy
The Network
Voice Packets Go to the Head of the Line
Continue reading here: Why Should I Care About Unified Communications
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