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4 Administrator Settings
97
4.4.2 Audio Algorithm
The system will automatically select the best audio algorithm based on the call rate and the
capabilities of the remote system. Use this menu to disable audio algorithms in case you want to
remove “low quality” audio, or if you have interoperability issues calling other systems.
G.722
High quality audio (7 kHz at 48kbps, 56kbps or 64kbps)
G.728
Compressed normal quality audio (telephone quality, 3.1 kHz at 16kbps)
G.711
Normal quality audio (telephone quality 3.1kHz at 64kbps). This audio algorithm is
mandatory for video conferencing equipment and is impossible to uncheck.
G.722.1
Compressed high quality audio (7 kHz at 24kbps, 32kbps and 48kbps).
AAC-
LD
CD-quality audio, MPEG-4 Advanced Audio Coding Low Delay (20 kHz, mono at
64kbps).
Call Rate vs Audio algorithms selected
Modify/remove algorithms used by unchecking the different audio algorithms.
Automatically preferred audio algorithms on call rates up to and including 192kbps
1. G.722.1 (24kbps or 32kbps)
2. G.728 (16kbps)
3. AAC-LD (64kbps or 56kbps)
4. G.722 (56kbps, 64kbps or 48kbps)*
5. G.711 (64kbps, 56kbps or 48kbps)**
6. AAC-LD (48kbps or 128kbps)
Automatically preferred audio algorithms on call rates above 192kbps
1. AAC-LD (128kbps)***
2. AAC-LD (64kbps or 56kbps)
3. G.722 (64kbps, 56kbps or 48kbps)*
4. G.722.1 (32kbps or 24kbps)
5. G.728 (16kbps)
6. G.711 (64kbps, 56kbps, 48kbps)**
7. AAC-LD (48kbps or 128kbps)
* G.722 at 64kbps is used in H.323 (IP) calls only.
** G.711 at 64kbps is used in SIP and H.323 (IP) calls only.
*** Dependent on a call rate above the AAC-LD 128 threshold. Note that this is not available on all TANDBERG systems.
- User Manual 1
- Trademarks and Copyright 2
- Environmental Issues 3
- Operator Safety Summary 4
- Contact us 5
- Table of Contents 6
- 1 Introduction 9
- - TANDBERG First 10
- 1.1 At a Glance 11
- 1.2 Menu Structure 13
- 2 Installation 16
- 2.1 Unpacking 17
- 2.2 Connecting Cables 18
- 2.3 Monitor Configuration 19
- 2.4 System Configuration 20
- 3 General Use 23
- 3.3 Using the Remote Control 27
- 3.3.1 Navigation 29
- 3.4 On-screen Indicators 31
- 3.5 Using the Kiosk Menu 32
- 3.6 Using the Language Menu 33
- 3.7 Place a Call 34
- 3.8 Receive a Call 35
- 3.9 End Call 36
- 3.10 Using the Handset 37
- 3.11 Standby 39
- 3.12.1 Add New Contact 41
- 3.12.2 Edit Contact 42
- 3.12.3 Delete Contact 43
- 3.13 Camera Control 45
- 3.14 Dual Stream 46
- (DuoVideoTF/H.239) 46
- 3.15 Control Panel 47
- 3.16 Diagnostics 48
- 3.16.1 System Information 49
- 3.16.2 Channel Status 50
- 3.16.3 Call Status 51
- 3.16.4 System Selftest 52
- Screen Settings 53
- 3.16.7 Warnings 58
- 3.16.8 Text Chat 60
- 3.16.10 Restart 62
- 3.16.11 User Guide 63
- 4 Administrator Settings 64
- 4.1 General Settings 65
- 4.1.1 Language 66
- 4.1.2 System Name 67
- 4.1.3 International Name 68
- 4.1.4 Auto Answer 69
- 4.1.5 Phone Book Settings 70
- 4.1.7 Permissions 72
- 4.1.8 Screen Settings 74
- 4.1.9 Software Options 79
- 4.1.11 Max Call Length 81
- 4.2 Menu Settings 82
- 4.2.1 Input Editor Language 83
- 4.2.2 Menu Timeout In Call 84
- 4.2.3 Balloon Help 85
- 4.2.5 Kiosk Mode Settings 87
- 4.2.6 Startup 90
- 4.2.7 Icons 92
- 4.3 Presentation Settings 93
- 4.3.1 Presentation Start 94
- 4.3.2 H.239 95
- 4.3.3 Startup Video Source 96
- 4.3.4 Presentation Source 97
- 4.3.5 Snapshot Source 98
- 4.3.6 Auto-Display Snapshot 99
- 4.3.7 PIP Appearance 100
- 4.3.8 PIP Placing 101
- 4.3.9 VNC Settings 102
- 4.4 Call Quality 103
- 4.4.1 Video Algorithm 104
- 4.4.2 Audio Algorithm 105
- 4.4.3 Natural Video 106
- 4.4.5 Video Quality 108
- 4.4.5.2 Native Resolutions 109
- 4.4.6 Default Call Settings 111
- 4.5 Audio 114
- 4.6 Video 117
- 4.6.1 MCU Status Line 118
- 4.6.2 Web Snapshots 119
- 4.6.3 Video Name 120
- 4.7 Security 121
- 4.7.1 Encryption 122
- 4.7.2 Encryption Mode 123
- 4.7.3 Passwords 124
- 4.8 Network 125
- 4.8.1 ISDN-BRI Settings 126
- Advanced ISDN Settings 127
- 4.8.2 LAN Settings 128
- 4.8.2.1 IP Settings 129
- DNS Settings 131
- 4.8.2.2 H.323 Settings 132
- Gatekeeper Settings 133
- CallManager Settings 134
- Advanced H.323 Settings 135
- 4.8.2.3 SIP Settings 137
- Authentication 138
- 4.8.2.5 SNMP Settings 142
- 4.8.2.6 IP Services 143
- 4.8.2.7 Quality of Service 144
- 4.8.2.8 IEEE 802.1x 146
- 4.8.3 Network Profiles 147
- 5 Interfaces 149
- 5.1.1 Video 150
- 5.1.2 Audio 152
- 5.1.3 Network 153
- 6 Appendices 154
- Appendix 1 155
- Appendix 2 158
- Appendix 3 159
- Appendix 4 160
- Appendix 5 162
- IP Password 163
- Services 163
- SNMP Security alert 163
- Appendix 6 165
- Appendix 7 166
- Appendix 8 167
- Appendix 9 168
- Appendix 10 170
- Appendix 11 171
- Appendix 12 173
- Appendix 13 179
- 7 Glossary 180
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