Nortel Meridian Meridian 1 Scripting Manual page 218

Basic script commands
Nortel highly recommends that you use the CONTROLLED keyword with this
command.
Restrictions
This command applies to voice contacts only.
Do not use this command in the network script (if you purchased the NSBR
feature).
Example
GIVE BUSY CONTROLLED
/* call reaches here only if above command fails */
GIVE RAN no_service_available_ran_gv
DISCONNECT
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Standard 8.04
Contact Center Manager