Configure ISDN Primary Rate Interface

This step is optional.

Enter the following information.


Parameter

Description
Local trunk group number This field appears only if Usage in the previous step is Trunk. The Trunk Group number of the ISDN PRI, used in billing records. When a call is set up using a circuit on this trunk group, the billing record output will indicate the trunk group's number. Range: 0 - 9999.
Network number This field appears only if Usage in the previous step is Trunk. An identifier for the remote network, which will appear in transit billing records for outgoing calls to the remote exchange. Specify a different number for each remote network, so that all remote exchanges on the same network have the same network number. Range: 0 - 999999.
Force echo cancellation on inbound calls This field appears only if Usage in the previous step is Trunk. Specifies whether the MetaSwitch NE or the remote system should provide echo cancellation for incoming calls on this PRI. Values:
  • True
    The MetaSwitch NE provides echo cancellation.
  • False
    The MetaSwitch NE does not provide echo cancellation, and assumes that it is provided by the remote system if required.
Supported call directions This field appears only if Usage in the previous step is Trunk. Specifies whether this PRI can be used for incoming calls, outgoing calls, or both. Values:
  • Incoming only
  • Outgoing only
  • Incoming and Outgoing
Direct IXC connection This field appears only if Usage in the previous step is Trunk. Specifies whether the remote exchange is a directly connected IXC. Values:
  • True
  • False
Supported bearer capabilities This field appears only if Usage in the previous step is Access. Types of ISDN call supported by this interface. Select one or more of the following values. The default is all values selected.
  • Speech or 3.1kHz audio
  • 64kbps data
  • 64kbps restricted
  • 56kbps data
Channel allocation policy This field appears only if Usage in the previous step is Access. Channel allocation algorithm on this interface. This should be set to the opposite of the algorithm used by the remote equipment using this interface, to minimize possible conflicts. Values:
  • Lowest available channel
    Use the lowest available channel in the lowest available DS1.
  • Highest available channel
    Use the highest available channel in the highest available DS1.
  • Most idle
    Use the available channel that has been idle for the longest time.
  • Least idle
    Use the available channel that has been idle for the shortest time.
Far end play ringback This field appears only if Usage in the previous step is Access. Specifies whether the connected Class II equipment provides audible ringing tone to the caller on voice calls. Values:
  • True
    The connected equipment provides ringback.
  • False
    The switch must provide the audible ringing tone, and the call is not cut through to the connected equipment until it is answered.
Calling number required This field appears only if Usage in the previous step is Access. Specifies whether the connected Class II equipment must provide a calling number (for use in Calling Number Delivery) on call origination attempts over this interface. If you change this parameter while the interface is active, the change does not take effect until the next attempt to originate a call. Values:
  • True
    The connected equipment must provide a calling number.
  • False
    A calling number is not required.
Trusted This field appears only if Usage in the previous step is Access. Specifies whether the ISDN PRI is trusted to receive caller ID information or not, if the caller has requested that their ID is withheld. Values:
  • True
    Caller ID information is supplied for calls sent over this ISDN PRI.
  • False
    Caller ID information is withheld.
Deactivation mode Specifies how child objects should be deactivated when deactivating this object. Values:
  • Normal
    Shut down child objects normally before deactivating the object.
  • Quiesce
    Deactivating the object in quiesce mode will wait for all existing child objects to be deactivated before this object is deactivated. No new child objects can be activated during this deactivation period.
  • Abort
    Deactivate the object and all its child objects immediately. (This may result in errors at remote systems.)
Billing - incoming terminating CDR type This field appears only if Usage in the previous step is Access, or Supported call directions is set to Outgoing. Specifies what additional CDR (if any) is output for incoming calls terminating on this NE using this ISDN PRI. Values:
  • None
  • FGD (119/0625)
  • FGB (135/0653)
  • CNA (720/0625) upon LNP query
  • CNA (720/0625) always
  • TT (710/0625)
  • ISDN (045/0001)
Billing - generate additional incoming call CDR This field appears only if Usage in the previous step is Access, or Supported call directions is set to Outgoing. Specifies whether an additional 119/0625 billing record should be output for incoming calls that are terminated locally, in addition to any CDR configured using the Billing - incoming terminating CDR type field. Values:
  • True
  • False
Billing - incoming tandem CDR type This field appears only if Usage in the previous step is Access, or Supported call directions is set to Outgoing. Specifies what additional CDR (if any) is output for a tandem call routed through this NE using this ISDN PRI for the incoming leg. Values:
  • None
  • FGD (119/0625)
  • FGB (135/0653)
  • CNA (720/0625) upon LNP query
  • CNA (720/0625) always
  • TT (710/0625)
  • ISDN (045/0001)
Billing - outgoing originating CDR type This field appears only if Usage in the previous step is Access, or Supported call directions is set to Incoming. Specifies what additional CDR (if any) is output for outgoing calls originating from this NE using this ISDN PRI. Values:
  • None
  • FGD (110/0625)
  • FGB (134/0625)
  • TT (711/0625)
  • ISDN (045/0001)
Billing - outgoing tandem CDR type This field appears only if Usage in the previous step is Access, or Supported call directions is set to Incoming. Specifies what additional CDR (if any) is output for a tandem call routed through this NE using this ISDN PRI for the outgoing leg. Values:
  • None
  • FGD (110/0625)
  • FGB (134/0625)
  • TT (711/0625)
  • ISDN (045/0001)
  • 119/0625
    Note that if a CDR of this type has already been recorded as specified in the trunk used for the incoming leg of the call, it will not be recorded again for the outgoing leg.
CNA billing for incoming calls - CIC This field is visible only if Usage in the previous step is Trunk, Supported call directions is not set to Outgoing, and either Billing - incoming terminating CDR type or Billing - incoming tandem CDR type is set to CNA (720/0625) upon LNP query or CNA (720/0625) always. Specifies the Carrier Identification Code to use in CNA billing records generated for incoming calls on this ISDN PRI. Range: 0 - 9999.
CNA billing for incoming calls - CNA billing number This field is visible only if Usage in the previous step is Trunk, Supported call directions is not set to Outgoing, and either Billing - incoming terminating CDR type or Billing - incoming tandem CDR type is set to CNA (720/0625) upon LNP query or CNA (720/0625) always. Specifies the billing number which may be output in CNA billing records generated for incoming calls on this ISDN PRI. Either leave this field blank, or specify a ten digit number.
CNA billing for incoming calls - include calling number This field is visible only if Usage in the previous step is Trunk, Supported call directions is not set to Outgoing, and either Billing - incoming terminating CDR type or Billing - incoming tandem CDR type is set to CNA (720/0625) upon LNP query or CNA (720/0625) always. Specifies whether the calling number should be included in CNA billing records for incoming calls on this ISDN PRI. Values:
  • True
  • False