Sony PCG-Z505JE - Manuel (Page 57)

Connecting a Phone Line "#
3
Plug the other end into the wall jack.
✍
Your computer does not work with party lines, cannot be connected to a coin-operated
telephone, and may not work with multiple phone lines or a private branch exchange (PBX).
Some of these connections might result in excess electrical current and could cause a
malfunction in the internal modem.
Phone cable (optional)
Phone line jack