Shared secretary

Hello,

My wife is a lawyer and share an office floor with 3 other independant worker. They all have there own phone and phone line but they all share the service of secreatry who has to switch phone constantly.

We would loke the secretary to deal with only one phone and console.

What appliance could I buy to have the following:

  • at least 4 separates PSTN lines (no E1 or T1)
  • at least one attendant console (software or hardware) which would deal with the four PSTN lines
  • at least 5 analog phone line

Thank you for you concern and expertise

Best regards,
Bidule