IBM F50 RS/6000 7025 - Manual (Page 129)

If call out policy is set to 'all', the Service Processor will attempt a call out to all
the following numbers in the order listed:
1. Service Center
2. Customer Admin Center
3. Pager
Remote timeout and Remote latency are functions of your service provider's
catcher computer. You should take the defaults or contact your service provider
for recommended settings.
Number of retries is the number of times you want the server to retry calls that
resulted in busy signals or other error messages.
Chapter 4. Service Processor Menus 4-21