TANDBERG 7000 MXP Manuel D’Utilisation

Administrator Settings 

201 

 

 

 
To make sure your system will work properly using ISDN-PRI, configure the following 
settings: 
 

1.  Set PRI switch type 
2.  Enter PRI line number 

 
Note that the T1 format is predefined to ESF and the line code is B8ZS. This is not configurable. 

Enter the range of numbers for your PRI line. If this number is programmed and MSN: On (see 
Validate numbers in Advanced ISDN Settings) only calls to this number will be answered.  

Select the type of PRI switch to which your system is connected. 
Below is a list of common ISDN-PRI/T1 switches.  

  
 

Type 

Manufacturer   

PRI Switch Type setting  

ATT 4 ESS  
ATT 5 ESS  
DMS 100 
DMS 250 

AT&T   
AT&T/Lucent    
Northern 
Telecom 
Telecom 
Northern  

AT&T ISDN 
AT&T ISDN or National ISDN* 
National ISDN 
National ISDN 
 

 

* Settings will depend on configuration of the switch. PRI Switch Type is not changed when 
Restoring Defaults. 

 Maximum number of channels the system may use at any given time.  
 

Low 
Channel                 
 

The lowest numbered B-channel that may be used by the system when 
selecting channels for outgoing calls.  
 

The highest numbered B-channel that may be used by the system when 
selecting channels for outgoing calls. 
 

Specifies where the system will start searching for available B-channels 
for outgoing calls.