I have found this old report that should explain the problem
Fault
Error: /pty/ppty01.S is not defined in SL1 Database. PDT in Progress. Please Wait....done!
Answer
Error: /pty/ppty01.S is not defined in SL1 Database. PDT in Progress. Please Wait....done!
Error: /pty/ppty02.S is not defined in SL1 Database. PDT in Progress. Please Wait....done!
Error: /pty/pptyXX.S is not defined in SL1 Database. PDT in Progress. Please Wait....done!
Unable to access Virtual Terminal Services from the Web
Unable to access Virtual System Terminal
Unable to access PBX via Virtual System Terminal
Configure 3 PTYs on the PBX. Virtual System Terminal requires 2 PTYs to be configured for web connectivity. Additional connectivity (for example, Overlay Passthru, Station Admin transmit/receive) will require an additional PTY.
Firebird Scrambler
Nortel & Avaya Meridian 1 / Succession & BCM / Norstar Programmer
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