Backup Pots Connection - Cisco uBR924 Installation Manual

Chapter 3 Installing the Cisco uBR924 Router
Listen for the fax tone on the other end and verify that the fax is transmitted. When either end hangs up,
Step 3
the call is torn down. The session ends, with each end going idle, waiting for another off-hook
condition.
Verify that the fax was correctly received at the destination.
Step 4

Backup POTS Connection

To verify the backup POTS line to the PSTN is operational:
Step 1 Simulate a power failure in the Cisco uBR924 router by disconnecting the 3-prong end of the power
cord from the power outlet—be certain to follow all safety instructions in the "Connecting Power"
section on page 3-10.
Pick up one of the telephones connected to the VoIP ports and dial out over the backup POTS line. Wait
Step 2
for a connection to be established.
When a cutover call is in place, connect the 3-prong end of the power cord to the power outlet. Power
Step 3
is immediately supplied to the router.
Verify that the cutover call remains connected.
Step 4
Disconnect the call. The router automatically reboots.
Step 5
After the router has come back online, test one of the VoIP ports (see "VoIP Telephone Connection"
Step 6
section on page 3-14) to verify that VoIP connectivity has been re-established.
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Cisco uBR924 Router Hardware Installation Guide
Verifying Installation
3-15