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Configuring ISDN
12-6 PortMaster Configuration Guide
Terminal Identifier (TID) for ISDN BRI
The terminal identifier (TID) is a numeric value used by some telephone switches for
additional identification. Some telephone companies require the SPID, while others
require a TID, as well. When configuring the PortMaster, append the TID to the SPID if
required by your carrier.
Directory Number
The optional directory number is a 10-digit phone number provided by the telephone
company. If it is set, an incoming call must match this number to determine which port
the call should be taken on.
Use either of the following commands to set the directory number.
Command> set S0 dn Number
Command> set S0 directory Number
Enter the following command to save the configuration to Flash:
Command> save all
Information Elements (IEs)
“Number plan” and “number type” are values that relate to attributes associated with
the called and calling party information elements (IEs) used to exchange phone
numbers within a setup message in ISDN. These values can vary among countries and
telephone companies.
You can configure the PortMaster to autodetect number plan and number type settings
on incoming calls and, if necessary, automatically modify the PortMaster configuration.
If the PortMaster detects a difference between the current settings and those of an
incoming call, it sends the following console message indicating that the values are
different and have been changed:
Call recvcd numberplans do not match (n:n)
The first
n
refers to the new number type and the second
n
refers to the new number
plan setting. Use the save all command to save modified settings to nonvolatile RAM.
To turn on autodetection of IEs, enter the following command:
Command> set isdn-numberauto on