Your P-870M-I Series ("P-870M-I") is a VDSL2 modem.
VDSL2 provides high-speed Internet access up to 100 Mbits
per second (each way) through a telephone line. As a result,
your P-870M-I is an ideal modem for Triple Play services,
such as voice, video, high definition television (HDTV), and
The P-870M-I Series consists of the following models:
• P-870M-I1, a VDSL2 modem for regular (POTS) lines
• P-870M-I3, a VDSL2 modem for ISDN lines
Make the following connections to set up your P-870M-I.
P-870M-Ix Series User's Guide