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Cisco Press Cisco IP Telephony Planning Design Implementation Operation And Optimization Mar 2005 ISBN 1587051575

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Figure 1-1. Separate Voice and Data Networks
Figure 1-2. Toll-Bypass Application
Figure 1-3. Call Control in Circuit- and Packet-Switched Networks
Figure 1-5 shows the high-level network architecture of anorganization that has transitioned to a Cisco IPT solution
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