9.4.12  

PRI (US only) 
 


Settings | Lines/networking | PRI
 

Slot / port field  
Here you can select the slot / port of a PRI card.

Protocol field  
In this field the adjusted protocol is shown.

Frame / Line / Encode field  
Here it can be selected the Layer 1 parameters for physical encoding of the line. There are only two choices, because it is not allowed to mix the parameters. Most new lines support ESF (Extended Superframe Mode) with a max. data throughout of 64 kbit / sec.
Older equipment and some special installations work in SF (Superframe Mode) with a max. data throughout of 56 kbit / sec.
ISDN provider informs customer whether or not a line can operate in ESF mode.
The meanings of the other abbreviations are the encoding type (B8ZS: Bipolar 8 Zero Substitution or ZCZ: Zero Code Suppression) and the D - channel encoding (normal or inverted).

B-channels field  
Here is shown the used number of B-channels.

Inwats Duwa field  
Dependent on a trunk group an INWATS DNIS (Dialed Number Identification Service) port is assigned to a DID port. This DID port should be configured as a pseudo port, this means that it is locked for basic DID. The entries in the CM tables are valid for the INWATS DNIS port.

CBC-trunk group field and CBC-pool field  
These fields allow to install a CBC-pool. One CBC-pool can exist of up to eight services. In the field CBC-trunk group the different CBC-access codes can be configured. In the field CBC-pool the according service can be configured.

See also:  
   -   Section 9.4 "Settings | Lines/networking"