The exemplary device 30 further illustratively includes a display 60 and {TAIL ~ a plurality} of {HEAD ~ control keys} including an “off hook” key 61, an “on hook” key 62, a menu key 63, and a return or escape key 64 
The exemplary device 30 further illustratively includes a display 60 and { TAIL ~ a plurality } of { HEAD ~ control keys } including an “ off hook ” key 61 , an “ on hook ” key 62 , a menu key 63 , and a return or escape key 64
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH