Acer 6000 - Manual (Page 27)

AcerPower 6000 User’s Guide 1-10
1.3.7 Connecting the Fax/Modem (Optional)
Your system also supports the optional fax/modem feature. Connect the
telephone line and handset as shown in Figure 1-9.
Figure 1-9 Connecting the Telephone Line and Handset to the Fax/Modem