Troubleshooting guide

Table Of Contents
123
Maintenance
Detect Device Moves for E911
Device move detection, in support of E911 Emergency Calling Services, is
critical to maintaining the accuracy of Customer Emergency Services ID
(CESID) information. With Release 5.2 and later, the IP device location
can be automatically updated or the location can be monitored for manual
update. Detection of Layer 2 connectivity is through Spanning Tree
Protocol (STP) or Cisco Discovery Protocol (CDP). The Device
Connectivity form excludes Mitel Soft Phones, Symbol, DECT, and
SpectraLink wireless phones, DNIC telephones, CITELlink telephones,
and Hot Desk Users.
Automatic CESID has the following requirements and restrictions:
All Layer 2 switches must report to CDP or STP or both (use one or
both protocols consistently on all L2 switches in the network)
Designate Emergency Calls using Route Lists
Not supported on hubs
CDP or STP must be enabled on L2 switches
Automatic CESID will not function during a backup or restore
Monitor Device Moves
1. Log into the System Administration Tool.
2. Click Device Connectivity - Moved, or Device Connectivity - All.
You can print or export the form (page 139).
Table 16: Device Connectivity Form Fields
Field name Description
DN Directory number of the IP device.
Date Date and time of most recently reported L2
connectivity report from the set
Time
Previous STP L2 Port MAC MAC address of the STP Layer 2 switch
where the IP device was connected before
being moved.
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