The overall goal of IP telephony is to replace traditional TDM-based telephony by deploying IPT components on existing IP networks. IPT should be highly available and as reliable as existing voice networks. IPT should provide greater flexibility and productivity while providing lower cost
Voice Enabled Infrastructure
QoS Enabled L2 Switch QoS Enabled L3 Switch of ownership by using a converged network. IPT also allows third-party software providers to develop new applications for IP phones.
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