The T1/E1 Combo card provides for resiliency. To use resiliency, you must have two 3300 ICPs running 3300 Release 7.0 software (or later) and a T1/E1 trunk connected to both ICPs. The trunk can fail over to the secondary ICP in the event of a primary ICP failure.
Features:
MITEL QUAD COPPER INTERFACE MODULE (CIM)
The 3300 ICP controller supports the Quad CIM MMC for connection to an Analog Services Unit, Universal ASU, or ASU II.
MITEL 3300 – 128 CHANNEL ECHO CANCELER CARD
The Echo Canceller (EC) module provides echo cancellation on Ethernet to TDM (E2T) channels.
MITEL 16-PORT ONS LINE CARD
The Mitel 16-Port ONS Line card has 16 built-in ports.
MITEL EX CONTROLLER
The Mitel EX controller provides up to a capacity of 1,400 IP users and offers local survivability and PSTN access for analog users.