I have seen postings on other sites alluding to the possibility of getting a TVS100 to hookflash a CO line. I am trying to get the incoming call to be transferred to an off premise telephone (non centrex). I thought that I could use Alternate Extention Transfer Sequence. I assigned an extension with the feature and programmed a speed dial with the 10 digit number (we need that for local calls as well) coding the Alternate Extension Transfer sequence with FWW*00 But that did not work. I think that I need to put another hookflash in at the end of the string as well. Anyone with success doing this. I have multiple off premise numbers that I would like to set up. What I would like to do is have the caller dial in the speed dial number when the CO line is flashed enabling 3 Way transfer.