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Cisco ATA 191 にも：管理マニュアル (4 ページ), ユーザーマニュアル (10 ページ), スタート (8 ページ), マニュアル (10 ページ), クイック・スタート・マニュアル (13 ページ), セットアップマニュアル (6 ページ), ユーザーマニュアル (40 ページ), ユーザーマニュアル (30 ページ)

Phone Behavior During Times of Network Congestion

Cisco cannot guarantee the performance of external devices, cables, and connectors.

Caution

In European Union countries, use only external speakers, microphones, and headsets that are fully compliant

with the EMC Directive [89/336/EC].

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect phone 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

The Federal Communications Commission requires compliance statements for the following:

Changes or modifications not expressly approved by the party responsible for compliance could void the

user's authority to operate the equipment.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End

users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter

must be at least 20 cm from the user and must not be collocated or operating in conjunction with any other

antenna or transmitter.

This product has been tested and complies with the specifications for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used according to the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which is found by turning

the equipment off and on, the user is encouraged to try to correct the interference by one or more of the

following measures:

Cisco ATA 191 User Guide for Cisco Unified Communications Manager

Product Safety and Security