The Alternate Server address feature allows you to specify alternate registration servers, if the main registration server, defined on the telephony login screen, is not available.
Note This feature is independent of the Alternate Gatekeeper function available in Communication Manager. The Alternate Gatekeeper List (AGL) is computed by Communication Manager at each registration and is provided to the endpoint during a successful Registration, Access, Security (RAS) process. The Alternate Server feature, on the other hand, allows a successful RAS session to be set up to begin with.
Obtain the alternate server addresses from your administrator.

