Hello, friend!
The default user name and password for logging in to the Telnet server are Eproot and adminEp respectively.
The default account and password of a device may vary depending on the region.
If the default account and password cannot be used to log in to the device, the account and password may have been changed on the device.
You may want to consult with the person taking over the job or look for a local equipment provider.
Thanks!