Cisco Small Business Voice Systems

In order to resolve the problem, complete the instructions below:

1) Changing the Dialing Parameters
2) Power Cycle the Devices

Changing the Dialing Parameters

Step 1:
Access the SPA-400 VoIP gateway's web-based setup page, then look for the Voice tab.

Step 2:
Under Dialing Parameters look for Answer after then change the value of to "1" then click save settings.

Step 3:
After saving the settings, power cycle the devices. For instructions, complete these steps:

Power Cycle the Devices

Step 1:
Unplug the SPA400's power cable.

Step 2:
Unplug the SPA9000's power cable and wait for 30 seconds.

Step 3:
Plug in the SPA9000's power cable and wait for its lights to appear stable.

Step 4:
Plug in the SPA400's power cable and wait for its lights to appear stable.