Cannot telnet to a local server

The bedrock edition of the Minecraft server uses UDP rather than TCP like the Java version.

This means that telnet cannot test the port. Microsoft PortQry Command Line Port Scanner and optional GUI can test UDP ports and confirms that the port is in fact open:

PS C:\Users\xyzzy\Downloads> .\PortQry.exe -n 192.168.1.30 -p BOTH -o 19132
Querying target system called:
 192.168.1.30
Attempting to resolve IP address to a name...
IP address resolved to DESKTOP-PC.LOCAL
querying...
TCP port 19132 (unknown service): NOT LISTENING
UDP port 19132 (unknown service): LISTENING or FILTERED
PS C:\Users\xyzzy\Downloads>

Because my network is already configured, it is even accessible from the WAN side.