Access Layer Network Architecture Diagram | IP Telephony Integration #3400990 (License: Personal Use)

This diagram depicts a standard enterprise access layer architecture, featuring three network switches at the top tier connecting to four IP telephones in the middle tier. Each IP phone is further connected to a desktop computer, forming a common voice-and-data endpoint setup. The red oval highlights the IP phone segment, emphasizing their role as critical access-layer devices in converged networks.

Used in networking documentation, IT training materials, or vendor whitepapers to explain how IP telephony integrates into the access layer of a hierarchical campus network. Matches user intent for learning about network topology, VoIP deployment, or Cisco-style three-tier architecture.