The extra buttons once used the ABCD DTMF tones but now use number combinations that can be dialed on any phone. The separate buttons remain as their purpose is understood by users. The hi-res photo shows these more clearly so you can see them. FO - Flash Override (A), F - Flash (B), I - Immediate (C), and P - Priority (D) are used in military phone exchanges to set the priority level of the call with FO causing every call on the trunk between origin and destination phones to be kicked off to allow the call to connect.
The hi-res photo also clearly shows the Raytheon name on the plastic housing. On Fri, Jul 15, 2011 at 9:36 PM, Bruce N <[email protected]> wrote: > > Hi everyone, > Just wondering who the mfg of the desk phone that Obama uses is? > http://talkingpointsmemo.com/news/2009/04/photo_obama_welcomes_specter.php > What are the red buttons for and why so many buttons where the 10 digit > buttons should be? Is that an Avaya receptionist phone? > -Bruce >
