Behavior During Times of Network Congestion
Anything that degrades network performance can affect voice and video quality, and in some cases, can cause a call to drop. Sources of network degradation can include, but are not limited to, the following activities:
- Administrative tasks, such as an internal port scan or security scan
- Attacks that occur on your network, such as a Denial of Service attack
To reduce or eliminate any adverse effects to the devices, schedule administrative network tasks during a time when the devices are not being used or exclude the devices from testing.
Cisco provides a wide range of resources to help you and your customer obtain the full benefits of the Cisco SPA IP phone.
Note For older Cisco IP phone models, such as the Cisco SPA9XX, see the Cisco SPA9XX Phone Administration Guide on cisco.com. This guide covers only the Cisco SPA300 Series IP phones, Cisco SPA500 Series IP phones, and the Cisco Cisco WIP310.