Zoom X5V User Manual page 73

Important:
If you install the X5v where your phone line enters your
home, be sure to connect an answering machine between
the X5v and the demarcation point. If you don't, and
someone calls you over the regular phone network while
you are on a VoIP call, the call will not go through. No
phone will ring at your end. If you attach an answering
machine to the X5v, regular phone callers can leave a
message if you are on a VoIP call.
Appendix B: VoIP Phone Installation Options 73