Emergency
Responder detects changes in the switch port association of wired
Cisco Unified IP Phones. An incremental or full discovery cycle detects
Cisco Unified IP Phones that have changed switch port associations or are newly
discovered. Cisco Unified IP Phones that become missing during a complete
discovery are also reported. Emergency Responder notifies the system
administrator of these changes by email.
Note |
A missing
Cisco Unified IP Phone is one that is registered in Cisco
Unified Communications Manager but is not found behind a switch port of any
switch tracked by Emergency Responder. Cisco Unified IP Phones that appear on
the Unlocated Phones page in Emergency Responder Administration web interface
are also included in the missing list. Switch-port Change Reporting reports the
location changes for Cisco Unified IP Communicator when it is connected to a
switch that is tracked by Emergency Responder.
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The
change notification email contains the following information:
- The time at which the change
was detected. This is the approximate completion time of the discovery cycle
that detected the change.
- The previous switch IP and
port number of the Cisco Unified IP Phone. If the Cisco Unified IP Phone is
new, this field is blank.
- The current switch IP and
port number of the Cisco Unified IP Phone. If the Cisco Unified IP Phone is
missing, this field is blank.
- The details of the
Cisco Unified IP Phone, including the MAC address, device name, Phone Type, IP
address and IP phone extensions.
Note |
Configure the
email client settings to allow line breaks in the email to improve readability.
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Supported
Cisco Unified IP Phones—This feature supports only wired
Cisco Unified IP Phones that meet both of these conditions:
- Wired
Cisco Unified IP Phones discovered behind a LAN switch port using Cisco
Discovery Protocol (CDP) tracking or Content-Addressable Memory (CAM) tracking.
- Wired
Cisco Unified IP Phones actively registered in Unified CM. The only exception
for this rule is Cisco Unified IP Phones previously registered in Unified CM.
These Cisco Unified IP Phones are reported as missing.
Cluster Scenario—The
active server in each server group within a cluster sends separate
notifications for the Cisco Unified IP Phones it discovers and tracks.
Server Group
Scenario—Within a server group, Emergency Responder performs change
detection and notification on the active Emergency Responder server only.
Feature Activation—The
change detection and notification feature requires manual activation.
Change Notification
conditions - Emergency Responder sends change notification email when a
full discovery cycle completes under any of these circumstances:
-
During a
normally scheduled discovery.
-
After a manual
start from the Emergency Responder Administrator web interface.
-
Because of a
Unified CM addition from the web interface by the system administrator.
Similarly, a
partial discovery cycle sends email notifications under these circumstances:
-
During a
normally scheduled discovery.
-
Because of a
LAN switch addition to Emergency Responder the system administrator starts the
discovery process.
-
Because the
system administrator selecting the
Locate
Switch Ports button on the LAN switch details page.
Note |
An Incremental
Discovery does not locate missing Cisco Unified IP Phones from Unified CM if no
phone registrations take place during the discovery cycle. A full discovery
detects all missing Cisco Unified IP Phones that are located since the previous
full discovery.
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The following
events do not result in a change notification:
-
When the
Emergency Responder Server starts following the first discovery cycle.
-
When a
Publisher returns to an online state following the first discovery cycle.
-
When no phone
location changes occur following a discovery cycle.