[asterisk-users] What to use instead of LookupCIDName?

[Vincent]

Hello

	When using LookupCIDName, Asterisk 1.4 says that it's
deprecated, and we should use "${DB(cidname/${CALLERID(num)})}"
instead, but I don't know how to use it:

;DEPRECATED exten => s,1,LookupCIDName
;ERROR
exten => s,1,${DB(cidname/${CALLERID(num)})}

I guess I should use this as a parameter to a function, but which one?

Thank you.