We have 2 sites on one site we have a publisher and a subscriber on the other site we have a subscriber only. How can I bring a second publisher into the 2nd site in case the primary fails. Extension mobility is paramaount to our operation.
You can only have 1 publisher per cluster, so redundancy for extension mobility is not currently possible. Take a look at the following link which says, "Therefore, when the publisher is unavailable, phone updates cannot occur, call forwarding cannot be modified, message-waiting state information will be lost, and Cisco CallManager Extension Mobility stops functioning."
CallManager clusters have a single publisher, and multiple subscribers... And EM relies on the publisher. This is a problem as your publisher may not be available on the 2nd site at some point... however there's not much you can do about it.
An alternative would be to run a seperate cluster at each site, and use a third party product to enable EM between the clusters... one is:
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...