When you blind transfer a call from one extension to another, the BLF indicator light doesn't turn back to green on the phone it was transferred from until the call is either picked up or dropped. The call transfers just fine, but it appears that the extension is busy on other BLFs in the office. This is causing a bit of confusion when transferring to an extension that may ring for a long time (i.e. external numbers). Is this a feature to help slow down the chaos or simply a glitch in SP4? We've reverted back to SP3 in the meantime and it doesn't exhibit this behavior.