Admin:
Record Main Greeting(s)
While the phone is idle, press the "VM" soft key, when the voice mail answers, press the "More" soft key,
now press the "Mgr" soft key, then press the "Instr" soft key,
Enter the message number to record... (Typically Day or Open greeting is 001, Night or Closed greeting is 002)
Follow the prompts to record.
Hang up when finished.