You can use REGEX for extensions list or just compare one number.
[macro-SetOutCID]
exten
=> s,1,Verbose("External Caller ID setting for internal
${CALLERID(num)}...")
same
=> n,ExecIf($[${REGEX("^(1011|1012|1013|1014)"
${CALLERID(num)})}]?Set(CALLERID(num)=4953229131))
same
=> n,ExecIf($["${CALLERID(num)}" =
"1040"]?Set(CALLERID(num)=4953229146))
same
=> n,ExecIf($["${CALLERID(num)}" =
"1041"]?Set(CALLERID(num)=4953229141))
same
=> n,ExecIf($[${REGEX("^(1042|1043)"
${CALLERID(num)})}]?Set(CALLERID(num)=4953229156))
same
=> n,ExecIf($["${CALLERID(num)}" =
"1050"]?Set(CALLERID(num)=4953229151))
same
=> n,ExecIf($["${CALLERID(num)}" =
"2002"]?Set(CALLERID(num)=4953229120))
; and so on
same
=> n,ExecIf($["${CALLERID(num)}" =
"5014"]?Set(CALLERID(num)=4953229198))
; last chance - if no other options, set 4953229141 !!!
same
=> n,ExecIf($[${LEN(${CALLERID(num)})} =
4]?Set(CALLERID(num)=4953229141))
same
=> n,ExecIf($[${LEN(${CALLERID(num)})} =
0]?Set(CALLERID(num)=4953229141))
same
=> n,Verbose("Outbound CallerID Set to ${CALLERID(num)}")