3com SuperStack 3 NBX User Manual

5 When the Dallas user answers, press Conference again to connect all 

four users.

, you work in the Chicago office and want to establish a 

conference call with someone in Atlanta, someone in Dallas, and 
someone at an external telephone number, you:

1 Dial the Atlanta site code (62) and then the extension.

2 After the Atlanta user answers, press Conference and dial the Dallas site 

code (63) and then the extension.

3 When the Dallas user answers, press Conference again to connect all 

three users.

4 Press Conference again and dial the external telephone number.

If the site requires that you dial 9 to reach an outside telephone line, and 
if the call is a long-distance call, the user might dial a number in area 
code 367 using the digit sequence 913675551212.

5 When the person answers, press Conference again to connect all four 

users.

Configuring a working VTL connection between two systems involves:

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You must obtain a license for VTLs. License levels are 2, 4, or 8 VTLs on 
the NBX 100 system, and 2, 4, 8, 16, 24, or 48 VTLs on a SuperStack 3 
NBX system. 

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Each VTL license applies only to the NBX system on which it is 
installed. To connect three sites by VTLs and to have each site support 
up to 8 simultaneous active VTL connections, you must install a 
separate license key for 8 VTLs on each of the three NBX systems. 

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To increase the number of VTLs above one of the levels on a system, 
you must add one or more incremental licenses of 2 VTLs each.