ISDN Protocol Administrator's and Developer's Guide ... - Intervoice

The B Channel Access screen appears. It provides statusinformation for each channel on the B Channel.The parameters on the B Channel Access screen are shown below:Span NumberIndicates the span selected by the user in step 2 on page 14-23.D Channel NumberIndicates the D Channel selected by the user in step 2 onpage 14-23.Physical StatusIndicates whether a span is present on the B Channel.Call OriginIndicates which side began the call. The options are NetworkOriginating or Local Originating.Call ReferenceIndicates the Call Reference Value (CRV) associated with eachcall by its originating source.The CRV is determined by a wraparound counter. Once thecounter reaches the end of the range, it restarts. The CRV isusually a 2-octet value representing 16 bits, and is a decimalvalue from 0 to 64k.Level 3 StateIndicates the type of state in which the B Channel sits. The stateis either Active or Null.14-24 ISDN Protocol Administrator’s and Developer’s Guide 60001262, First Edition