What Are The Requirements For Telephone Service - Cisco DPQ2425 User Manual

What Are the Requirements for Telephone Service?

What Are the Requirements for Telephone Service?
Number of Telephone Devices
The RJ-11 telephone-style connectors on the wireless residential gateway can each
provide telephone service to multiple telephones, fax machines, and analog
modems.
The maximum number of telephone devices connected to each RJ-11 port is limited
by the total Ringing Load of the telephone devices that are connected. Many
telephone devices are marked with a Ringer Equivalent Number (REN). Each
telephone port on the wireless residential gateway can support up to a 5 REN load.
The sum of the REN load on all of the telephone devices attached to each port must
not exceed 5 REN.
Telephone Device Types
You can use telephone devices that are not labeled with a REN number, but the
maximum number of attached telephone devices cannot be accurately calculated.
With telephone devices that are not labeled, each device should be connected and
the ring signal should be tested before adding more devices. If too many telephone
devices are attached and the ring signal can no longer be heard, telephone devices
should be removed until the ring signal works properly.
Telephones, fax machines, and other telephone devices should use the center 2 pins
of the RJ-11 connectors to connect to the wireless residential gateway telephone
ports. Some telephones use other pins on the RJ-11 connectors and require adapters
in order to work.
Dialing Requirements
All your telephones should be set to use DTMF dialing. Pulse dialing is typically not
enabled by your local provider.
Telephone Wiring Requirements
The wireless residential gateway supports connecting to the interior telephone
wiring as well as connecting directly to a telephone or fax machine. The maximum
distance from the unit to the most distant telephone device must not exceed 1000 feet
(300 meters). Use 26-gauge twisted-pair, or larger, telephone wiring.
Important: Connection to an existing or a new permanently installed home
telephone wiring network must be done by a qualified installer.
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