Using a VTL Password
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For more information about how compression affects bandwidth, see
“Audio Settings”
on
page 37
.
During VTL call setup, the VTL software at each end of the call negotiates
a compression level that is supported by both systems. For example,
System A is configured for G729, high compression, and System B is
configured for G711, no compression. A VTL call between System A and
System B will use G711, no compression. It does not matter which system
initiates the call.
To enable VTL audio compression:
1
Click
System-Wide Settings > Audio Settings
.
2
Click the
Audio Compression on VTL Calls
check box and then click
OK
.
Enabling Silence
Suppression on VTL
Calls
You can enable silence suppression for VTL calls. The default condition is
disabled because silence suppression can compromise audio quality. For
more information about how compression affects bandwidth, see
“Audio
Settings”
on
page 37
.
When you enable VTL silence suppression, the VTL software attempts to
use silence suppression on all VTL calls. If the other system is not
configured to support silence suppression, the local VTL software
attempts to find a compatible communications mode.
Do not enable silence suppression unless you have network congestion
problems you cannot solve otherwise. Enabling silence suppression can
reduce network traffic, but the result is a compromise to audio quality.
To enable silence suppression on VTLs:
1
Click
System-Wide Settings > Audio Settings
.
2
Under
VTL Audio Calls Settings
, enable the
Enable Silence Suppression
check box.
3
Click
OK
.
Using a VTL
Password
To allow users on one system to place VTL calls to another system and
then place long-distance (toll) calls from that location (a practice called
‘hop off’), you can configure a VTL password.
When an system receives a VTL call from a user on another system, it can
allow that user to make long-distance calls if the incoming VTL call
Summary of Contents for 3C10402B
Page 18: ...18 ...
Page 22: ...22 ABOUT THIS GUIDE ...
Page 26: ...26 CHAPTER 1 INTRODUCTION ...
Page 74: ...74 CHAPTER 3 FEATURE SETTINGS ...
Page 130: ...130 CHAPTER 5 TELEPHONE CONFIGURATION ...
Page 156: ...156 CHAPTER 7 CALL DISTRIBUTION GROUPS ...
Page 194: ...194 CHAPTER 8 PSTN GATEWAY CONFIGURATION ...
Page 256: ...256 CHAPTER 10 SIP MODE OPERATIONS ...
Page 328: ...328 CHAPTER 11 DIAL PLAN ...
Page 360: ...360 CHAPTER 13 DOWNLOADS ...
Page 370: ...370 CHAPTER 14 LICENSING AND UPGRADES ...
Page 406: ...406 CHAPTER 16 NETWORK MANAGEMENT ...
Page 412: ...412 CHAPTER 17 COUNTRY SETTINGS ...
Page 450: ...450 APPENDIX A INTEGRATING THIRD PARTY MESSAGING ...
Page 456: ...456 APPENDIX B ISDN COMPLETION CAUSE CODES ...
Page 510: ...510 APPENDIX F OUTBOUND CALLER ID AND 911 SERVICE ...
Page 546: ...546 APPENDIX G NBX ENTERPRISE MIB ...
Page 566: ...566 GLOSSARY ...
Page 578: ...578 INDEX ...
Page 582: ......