Advanced UseTANDBERG Director Videoconferencing System
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In the example on the previous page, the unit will start searching for available B-channels at channel
20, since ‘Search’ is set to ‘High’ and ‘High Channel’ is set to 20. The unit will not search for
channels below 10, since ‘Low Channel’ is set to 10. Furthermore if the user tries to make an 8
channel call, the call will be established with 6 channel, since ‘Max Channels’ is set to 6.
Line Settings
‘T1 Cable Length 1’ specifies the distance to the CSU connected to the ‘E1/T1 1’ port on codec 1.
‘T1 Cable Length 2’ specifies the cascading distance from the ‘E1/T1 2’ port on codec 1 to the ‘E1/
T1 1’ port on codec 2. Possible values are 0-115 feet, 80-215 feet, 180-310 feet, 280-410 feet, 375-
510 feet, 475-605 feet, 575-690 feet.
E1 CRC-4 is used for most E1-PRI configurations. You can turn it off if not supported by your E1
network equipment.
For further information refer to Appendix 3: Connecting the system to PRI/T1
Advanced ISDN Settings
This is the same menu as for ISDN-BRI. The settings will be common for ISDN BRI and ISDN PRI.
Please refer to section ‘ISDN-BRI Settings’.
Advanced ISDN-PRI Settings
NSF - Non Standard Facility. Your network provider may require a service selection in your ISDN
configuration. Enter the Service code here.
Valid NSF service codes are from 1 to 31. Enter 0 to disable NSF service codes.
EXAMPLE:
AT&T OFFERS SEVERAL DIGITAL SWITCHED SERVICES. THESE INCLUDE SDN WITH SERVICE CODE 1 AND
ACCUNET WITH SERVICE CODE 6.