Hello All!
Supra Tech Support says the "proper" way to enable the CID support is as 
follows: at&F2#CID=1.
They also say just entering "AT#CID=1" should *always* result in an "error" 
response.
Still working on why MY modem doesn't respond correctly. :(
        John
... Atoms of the World, UNITE (whoops, too late)
--- GoldED/386 2.50+ 91LM1
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