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Tech Tip: CER support for Extension Mobility and 3rd party switches

Hi All,

CER does not support any non-Cisco LAN switches for CDP or CAM-based discovery.  You can use IP subnet location
discovery with any vendor's LAN switches, but you need to manually add phones connected to unsupported switches.
However, you cannot manually add a phone that is used with Extension Mobility because a user can log into any phone
and the phone is assigned the user's extension. With manually-defined phones, you are defining the phone based on
an extension, not a device, so the extension of the logged-in person does not get assigned the appropriate ERL.
You need to ensure that all phones used with Extension Mobility are connected to supported switch ports.


Tere Stevens
Unified Communications PDI Team

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Last update:
‎08-10-2010 02:13 PM
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