One of the employees messed around with the programming on the phone and now the number 9 can't be used to dial out. in fact, there is no way we know now how to dial out. this is just on that one phone in his office. the rest of the phones work normally.  it is a Lucent Merlin legend MLX-10DP phone

Lands Phones - Lucent - Merlin Legend MLX-10D Phone