Clear-Com Eclipse-Omega - Manual (Page 73)

Clear-Com
Eclipse Omega Instruction Manual 4 - 1 3
rear card are connected using standard straight-through CAT5 cables
rather than crossover CAT5 cables.
Figure 4-10: T1 Trunking via an T1 Network
TRUNKING FAILOVER
Where the E1/T1 trunking has been configured with redundant trunks
audio will be switched from the primary trunk to the backup trunk when
a failure is detected. When failover occurs from primary to backup
there will be a three second audio break on any route running over the
trunk. If the trunk routing is later switched back from the backup trunk
to the primary trunk there will be no loss of audio.