T38G Prefix + BLF not performing as illustrated

[mujizac]

In other forum posts there is talk about how configuring a prefix for a dss key, and then a blf for a dss key would make it so that you could dial the prefix then the blf.
I have configured my phone as such, so that I have a prefix of *11 and a blf for an extension, but when I try the procedure of pressing one button then the other, it only attempts to dial out to the blf, as opposed to the prefix then blf.

I am able to press the prefix button, then manually dial the extension, but this isn't really how I want to implement this feature (In my case, paging).

Currently I am using 38.70.1.33 for my firmware, however I had the problem on 38.70.0.221