I believe it would be extremely useful to be able to set up a BLF key to initiate an intercom call. Currently the BLF is limited to only initiating a normal call.
In order to reduce the complexity of the feature software / configuration wise, I think it would be reasonable to be able to make the BLF button start an intercom to extension 123 by putting *80123 in the value field. The *80 could be replaced with whatever set of numbers you use to initiate an intercom on your current system. With this in mind, you could enable other things like paging by supporting *###(Extension) where the #'s represent whatever feature code prefix you would like. (I,e *81 for paging)
This feature has been requested by other users in the past: