Cisco 7940 - IP Phone VoIP User's Guide Page 114
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Appendix B Safety Notices
B-2
Cisco IP Phone 7960G and 7940G User Guide
OL-4637-01
Warning
Do not work on the system or connect or disconnect cables during periods of
lightning activity.
Warning
To avoid electric shock, do not connect safety extra low voltage (SELV) circuits
to telephone network voltage (TNV) circuits. LAN ports contain SELV circuits,
and WAN ports contain TNV circuits. Some LAN and WAN ports use RJ-45
connectors. Use caution when connecting cables.
The following warnings apply when you use the external power supply with the
Cisco IP Phone:
Warning
This product relies on the building's installation for short-circuit (over current)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S.
(240 VAC, 10A international) is used on the phase conductors (all
current-carrying conductors).
Warning
The device is designed to work with TN power systems.
Using External Devices with Your Cisco IP Phone
The following information applies when you use external devices with the Cisco
IP Phone:
• Cisco recommends the use of good quality external devices (speakers,
microphones, and headsets) that are screened against unwanted radio
frequency (RF) and audio frequency (AF) signals.
• Depending on the quality of these devices and their proximity to other
devices such as mobile phones or two-way radios, some audio noise may
still occur. In these cases, Cisco recommends that you take one or more of
the following actions:
–
Move the external device away from the source of the RF or AF signals.
–
Route the external device cables away from the source of the RF or AF
signals.
–
Use screened cables for the external device, or use cables with a better
screen and connector.
- User Guide 1
- All rights reserved 3
- CONTENTS 5
- Contents 6
- A FAQ A-1 9
- B Safety Notices B-1 10
- About this Guide 11
- Obtaining Documentation 13
- Documentation CD-ROM 14
- Ordering Documentation 14
- Documentation Feedback 14
- Cisco TAC Website 15
- Opening a TAC Case 15
- TAC Case Priority Definitions 16
- Document Conventions 18
- Waarschuwing 19
- Varoitus 19
- Attention 20
- Avvertenza 20
- Advarsel 21
- ¡Advertencia! 21
- Varning! 22
- Before You Begin 29
- Procedure 29
- Using Feature Buttons 34
- Using Help on Your Phone 35
- Using Softkeys 35
- Choosing a Menu Item 36
- Using the Handset 37
- Adjusting the Handset Rest 37
- Using the Speaker 38
- Using a Headset 39
- Making Calls on Your Phone 41
- Placing a Call 42
- Answering a Call 45
- Using Cisco Call Back 46
- Using Mute and Hold 49
- Tracing Suspicious Calls 50
- Setting Up a Priority Call 52
- Receiving a Priority Call 52
- MLPP Messages 53
- Transferring Calls 55
- Extension Using Call Pickup 59
- Placing a Conference Call 65
- Understanding Shared Lines 68
- Support for Conference Modes 69
- Using Meet-me Conferences 72
- Joining a Meet-me Conference 73
- Adjusting the Ringer Volume 76
- Changing your Password or PIN 80
- Managing Your Phone Contacts 85
- Using a Personal Address Book 86
- Synchronizer 88
- Using the Fast Dial Service 88
- Number on Your Phone 89
- Dialing a Fast Dial Entry 90
- Cisco CallManager Extension 93
- Mobility Feature 93
- Mobility 95
- Mobility PIN 96
- Troubleshooting Your Phone 97
- Accessing Model Information 100
- Accessing Status Data 101
- Diagnosing Problems 102
- OL-4637-01 102
- APPENDIX 105
- Appendix A FAQ 106
- How do I forward calls? 108
- Safety Notices 113
- Cisco IP Phone: 114
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