The show isdn status command is primarily used for what purpose?

The command "show isdn status" is primarily utilized to assess the status of ISDN (Integrated Services Digital Network) interfaces on a Cisco device. This command provides valuable information regarding the operational state of the ISDN interfaces, such as the connection status, the last call establishment attempt, and any potential issues that may be affecting the interface. By offering real-time status updates, it enables network technicians to quickly identify and troubleshoot problems within ISDN connections, ensuring they are functioning correctly.

Understanding this is crucial for maintaining network reliability, especially in environments where ISDN is used for voice and data services. The specific details provided by the command can guide technicians in confirming the readiness of ISDN circuits and diagnosing any connectivity or configuration issues that might arise. Other options may address different aspects of network management but do not focus on the particular operational status of ISDN interfaces the same way this command does.