MP-20x Telephone Adapter 176 Document #: LTRT-50609
User's Manual
12.2.6 Telnet CLI
MP-20x features a Command Line Interface (CLI) over Telnet. The CLI enables the service
provider to manage MP-20x (e.g. reboot, force a firmware upgrade), to obtain information
about the status of the device (e.g. VoIP calls, network interfaces, version information), to
change the configuration and to perform different debugging tasks (e.g. enable debug
logging, enable packet recording).
Typically, the CLI interface is only used for debugging and diagnostics, since it does not
allow mass configuration and monitoring.
Since the CLI allows all configuration and management operations, it is important to protect
it. The following security measures are available:
The CLI is user and password protected (same as the Web).
Telnet access can be blocked from the WAN and/or LAN interfaces.
It is possible to limit Telnet access to specific IP addresses.
Future versions will support SSH.