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The WAN Call Directory is a list of WAN call destination configurations. You must create at least one WAN call destination configuration for each WAN link you want to use (one WAN call destination is one virtual circuit on one WAN link). Such a configuration contains the parameters needed by the WAN driver to establish and maintain links to a given destination. If you are routing multiple network protocols across a given WAN link, you must create one WAN call destination for each protocol that is routed on the WAN link.
Specifies the name of the WAN call destination. The name can contain up to 47 alphanumeric characters. This field is read-only.
Specifies the type of call: permanent (active continuously) or on-demand (activated by the presence of data traffic directed to or through the remote peer system). The selection is made independent of the physical media type. You can specify permanent for switched circuits, dial-up circuits, or leased lines.
Options: Permanent, On Demand
Default: Permanent
Protocols such as IPX or IP can request an X.25 virtual circuit to be made either through a specific interface or by way of one interface from within a group of interfaces. Setting this parameter to a group name includes this interface in the specified group.
This parameter is available only when an on-demand call is configured.
Press Enter to display a list of currently defined groups and to define new groups.
Instructs NetWare Link/X.25 to establish a virtual circuit through a specific X.25 interface.
You can define call establishment through a specific interface (by setting this parameter) or through the first available interface from a group (by setting the Interface Group parameter).
NOTE: You can select an interface group or a single network interface, but not both.
Press Enter to display a list of all the available NetWare Link/X.25 interfaces, then select the interface you want.
Specifies whether a PVC or an SVC is used to establish a connection to the specific destination.
NOTE: IP, Bridge, and AppleTalk protocols do not support PVCs.
Options: Permanent Virtual Circuit, Switched Virtual Circuit
Default: Switched Virtual Circuit
Specifies the PVC number. This number must be equal to the LCN assigned by the network to a PVC at network subscription time.
NOTE: This parameter is available only if the Circuit Type parameter is set to Permanent Virtual Circuit.
Range: 0 to 4095
Default: 1
Specifies the X.121 DTE address assigned to the specific destination DTE. Enter up to 15 digits (in the range 0 through 9).
Default: Blank
Specifies the conditions when a failed attempt at a connection (under the Call Type parameter) is retried automatically.
All connection failures are reported to the system console and to the Call Manager utility (CALLMGR). The result is successive connection attempts, with an increasing delay between each attempt. The delay is set initially to 8 seconds and increases exponentially to the limit.
Options: Never Retry, Retry All Failures, Retry Self-Correcting Failures
Default: Retry Self-Correcting Failures
Specifies the action taken when the connection retry interval exceeds the configured limit. Retries can continue indefinitely at the configured interval limit or are terminated (the connections fail). The default option of Continuous At Limit supports unattended operation.
Options: Continuous At Limit, Stop At Limit
Default: Continuous At Limit (for permanent); Stop At Limit (for on-demand)
Specifies the maximum delay interval, in hours:minutes:seconds, between attempts to establish a permanent connection (under the Call Type parameter).
The delay is set initially to 1 second and increases exponentially. The Retry Limit Handling parameter allows retries to continue or stop when the maximum delay is reached.
Options: 00:00:00 to 23:59:59 (hh:mm:ss)
Defaults: 00:10:00 (for permanent); 00:02:00 (for on-demand)
Specifies the amount of time, in seconds, that a call can be inactive before closing the connection. This parameter is visible only for on-demand calls.
Range: 0 to 23:59:59
Default: 00:10:00
Specifies the symbolic name of the remote peer system associated with this WAN call destination entry. This is typically the remote system server name.
This ID is accessed by protocol stacks to identify the proper WAN call destination needed to restore an on-demand connection to a remote system that previously initiated a connection to this system.
Options: 1 to 47 ASCII characters
Default: WAN Call Destination Name
Pressing Enter while the cursor is on the Expert Call Configuration Parameters field displays a window listing Expert Call Configuration parameters. This window lets you configure advanced parameters for a specific WAN call destination.
You can configure the following Expert Call Configuration parameters.
Specifies the name of the WAN call destination. The name can contain up to 47 alphanumeric characters. This field is read-only.
Specifies whether Reverse Charging is requested for this call.
Options: Yes, No
Default: No
Specifies the size of the window that is negotiated for a specific call. The value in this parameter overrides the default inbound or outbound window sizes specified in the X.25 Packet Level Parameters window. Refer to Packet Level Parameters for more information.
Range: 1 to 7 (Modulo 8); 1 to 127 (Modulo 128)
Default: 0 (no Window Size Negotiation Packet level)
Specifies the size of the packet that is negotiated for a call. If this parameter is used, it overrides the default inbound and outbound packet sizes specified in the X.25 Packet Level Parameters window.
Options: 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, Not Selected
Default: Not Selected
Specifies the throughput, in bits per second, that is negotiated for the call.
Options: 75, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 48000, 64000, Not Selected
Default: Not Selected
Specifies the type of CUG that is used for this specific call. A CUG permits DTEs belonging to the group to communicate with each other, but a CUG precludes communication with all other DTEs.
Options: Bilateral, Incoming, Not Selected, Outgoing
Default: Not Selected
Specifies a one- or four-digit hexadecimal number for a specific CUG. If the CUG Facility parameter is set to Incoming or Outgoing, you can enter a two-digit number. If the CUG Facility parameter is set to Bilateral, you can enter up to four digits.
WARNING: Refer to the ITU-T (formerly CCITT) Recommendation X.25 for more information before you set this parameter.
Specifies an optional parameter that a DTE can request for a virtual circuit to allow the use of up to 128 bytes of user data in Call Request packets. You can specify whether the Fast Select option is used for the call.
Options: Yes, No
Default: No
Addition to the Fast Select parameter that specifies whether the called DTE can accept a call with the Fast Select option.
If set to Yes, a call is made with Fast Select with the restriction enabled. In this case, the called DTE must clear the incoming call. This parameter is available only if the Fast Select parameter is set to Yes.
Options: Yes, No
Default: No
Specifies the actual user data that is sent in the Call Request Packet User Data field.
The length of the user data field depends on whether you configure to use Fast Select.
The following shows the lengths, in bytes, that are available, depending on two aspects: whether you are using Fast Select and the specific protocol being used.
Lets you add new facilities codes to your current configuration in addition to the facilities already specified.
WARNING: This parameter must be entered in hexadecimal format. Refer to the ITU-T Recommendation X.25 before setting this parameter.
Provided as a convenience for customers requiring the specification of National or proprietary facilities. A provision for a Facilities Parameter Marker value is also included. This field is convenient for use across an X.25 gateway.
Entries must be in hexadecimal format consistent with the ITU-T Recommendation X.25.
Consult your network representative or technical support for further information.
Specifies whether the inbound authentication database for the interface associated with this WAN call destination is updated to reflect connection information. If the parameter is set to Enabled, an entry consisting of the remote system ID and the password is written to the authentication database. If the parameter is set to Disabled, no entry is written.
Options: Enabled, Disabled
Default: Disabled
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