Enable telnet on ShoreTel SG90

I needed to telnet into our ShoreTel switch this morning. This information is not listed in the manual but I was able to piece it together from a couple of other sources. First, navigate to C:\Program Files\Shoreline Communications\ShoreWare Server\. Next issue the command:

ipbxctl.exe -telneton <switch IP address>

You should then be prompted for a password. This default password on this model switch is "ShoreTel". You should then see the message "telnet access enabled". That's all there is to it. I understand the V version of the switches require ssh, but the plain jane SG90 still uses telnet.