The MM714 analog media module provides four analog telephone ports and four analog trunk ports.
Note:
You cannot use four analog trunk ports for analog DID trunks. You must use four analog telephone ports instead.
You can configure MM714 trunk ports as the following:
A loop start, or a ground start central office trunk with a loop current of 18 to 120 mA
A two-wire analog outgoing CAMA E911 trunk, for connectivity to PSTN. MF signaling is supported for CAMA ports.
You can configure the 4 MM714 line ports as the following:
A wink-start or an immediate-start DID trunk
Analog tip/ring devices, such as single-line phones, with or without a LED message waiting indicator
Other MM714 media module hardware features include the following:
Three ringer loads, which is the Ringer Equivalency Number (REN), for the following loop lengths:
20,000 feet (6096 meters) with a 0.65 mm wire
16,000 feet (4877 meters) with a 0.5 mm wire
10,000 feet (3048 meters) with a 0.4 mm wire
With ringer load of .1 or less, the supported loop length is 20,000 feet (6096 meters) with a 0.65 mm, 0.5 mm, and 0.4 mm wire.
Up to four simultaneously ringing ports
Type 1 caller ID and Type 2 caller ID
Ring voltage generation for a variety of international frequencies and cadences