Callmanager 4.2 Extension Mobility

[hbritz]

Can a subscriber server supply extension mobility services if the publisher fails in CCM 4.2?

[Dennis Fogler]

With Call Manager Extension Mobility, the Subscribers can run the Extension Mobility service, however, the the Publisher is needed to provide the registration. Therefore if it is not available users cannot login via extension mobility.

Please note this only impacts new logins or logouts. If a user is logged in to Extension Mobility when the publisher becomes unavailable they will stay logged in.

[Zin.Karzazi]

In the case of an unavailable publisher, you cannot update subscriber copies of the database. 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.

from:

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_administration_guide_chapter09186a00803eda7f.html