it on and good reason to keep it off status indicator 320 indicates whether detachable wireless terminal 102 is u201c on u201d coupler 322 receives a lanyard etc so that it can be worn about a user 39 s neck or wrist or coupled to a user 39 s belt alternatively detachable wireless terminal 102 can be coupled to a bracelet necklace key ring or the like that is normally worn or carried by a user fig4 depicts a second illustrative embodiment of detachable wireless terminal 102 as depicted in fig4 the first illustrative embodiment has a generally circular shape and includes five buttons 404 405 406 408 and 410 recessed regions 412 and 426 speaker opening 414 microphone opening 416 mode on off switch 418 status power indicator 420 coupler 422 and lanyard 424 the circular form factor of the second illustrative embodiment facilitates placing a large button e g larger than the other buttons such as button 410 in the center of detachable wireless terminal 102 this button is intended for emergencies such as would be addressed by a call to 9 1 1 the remaining four call buttons buttons 404 405 406 and 408 are located along.