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Overview of Virtual Tie Lines
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Conference Calls
Users can set up conference calls over VTLs in much the same way that
they set up conference calls with other users at their local site, or at a site
reachable by an external telephone line. On NBX 100 systems, you can
have up to four 4-person conference calls simultaneously. On a
SuperStack 3 NBX system, you can have up to twelve 4-person
conference calls simultaneously.
To be able to make conference calls between sites, you must have IGMP
(Internet Group Management Protocol) implemented on your network.
Conference Calls Using Site-Unique Extensions
In Figure 28, a user in Chicago establishes a conference call with two
users in Atlanta and one user in Dallas as follows:
1
Dial the first extension in Atlanta.
2
After the user answers, press
Conference
and dial the second extension
in Atlanta.
3
When the second user answers, press
Conference
again to connect all
three users.
4
Press
Conference
again and dial the extension of the user in Dallas.
5
When the fourth party answers, press
Conference
to connect all four
users.
Conference Calls Using Site Codes
In Figure 29, if you work in the Chicago office, to establish a conference
call with two people in Atlanta and one person in Dallas:
1
Dial the site code (62) and the first extension.
2
After the first user answers, press
Conference
, dial the same site code
(62) and the second extension in Atlanta.
3
When the second Atlanta user answers, press
Conference
again to
connect all three users.
4
Press
Conference
again and dial the Dallas site code (63) and then the
extension of the user in Dallas.
5
When the Dallas user answers, press
Conference
again to connect all
four users.
Содержание SuperStack 3 NBX
Страница 14: ......
Страница 18: ...18 ABOUT THIS GUIDE...
Страница 26: ...26 CHAPTER 1 INTRODUCTION...
Страница 138: ...138 CHAPTER 2 DIAL PLAN...
Страница 322: ...322 CHAPTER 3 DEVICE CONFIGURATION...
Страница 328: ...328 CHAPTER 4 USER CONFIGURATION...
Страница 412: ...412 CHAPTER 10 TROUBLESHOOTING...
Страница 458: ...458 APPENDIX B ISDN COMPLETION CAUSE CODES...
Страница 480: ...480 GLOSSARY...
Страница 491: ...INDEX 491 W wall mounting telephones 142 X Xfer Vmail button 176 194 201 Y yellow alarm T1 and E1 Digital Line Cards 405...
Страница 492: ...492 INDEX...