Content

| 7.6 |  | Network Design Issues for Voice |
| 7.6.4 |  | Infrastructure considerations |

Building an end-to-end IP telephony system requires an IP infrastructure based on Layer 2 and Layer 3 switches and routers, with switched connections to the desktop. Network designers must ensure that the endpoints are connected using switched 10/100 Ethernet ports. The use of hubs for shared connectivity to the switches is not recommended because they can interfere with correct operation of the IP telephony system.