I am installing up new Tel & VM systems for small companies, doctor's offices, etc. A small system like a 4x4 configuration and a fax is a the size I am referring to.
The customers don't want to go to the expense of adding a dedicated line for remote access for maintenance, and neither do I (I'm just a little company, too).
I want to use a solution I have seen before- using an analog fax linein combination with a multi-selector switch (A-B-C) connected to the line. A would go to the fax, B would go to the phone system modem, and C to the voicemail system modem. Of course, a customer would have to turn the switch when access is needed, and turn it back to A when work is completed.
Is this a good solution? Is there a better solution, automatic or manual?