Motorola KRZR K1m Owner's Manual page 76

features
share entry with another Bluetooth
device
Set the default number for a Contacts entry
with multiple numbers:
Find it: s > n Contacts
Scroll to the entry and press Options, then
scroll to Share Phonebook Entry and press Select.
(For more information on Bluetooth
connections, see pages 38 and 82.)
74 other features—contacts
features
create mailing list
Find it: s > n Contacts > [New Entry]
> Mailing List
Enter a name for the list and press Ok. Scroll
to Members and press the center key s.
To add a Contacts entry to the list, scroll to
that entry and press the center key s to
select it. Repeat this step to add more
members.
When you are finished adding members,
press Ok. Press Done to save the mailing list.
When you send a message to a mailing list,
the message goes to all Contacts entries in
that list.