On Windows XP, incoming calls using the Voyager Legend UC (or Voyager PRO UC) headset and NEC UNIVERGE SP350 v5.2 softphone set the microphone to mute when answered.
SP350 v5.2 made timing changes which cause incorrect mute operation on Windows XP.
Use SP350 v5.1 instead, or upgrade to Windows Vista, 7 or 8.
Affected Operating System(s)
Affected Software Application(s)
Spokes 2.6 and later, with NEC UNIVERGE SP350 version 5.2
Voyager Legend UC and Voyager PRO UC (all revisions)
February 14, 2013