Customer Reviews
Questions?  Call us today!  800-929-8061

Click to enlarge

SoundStation Premier 550D Definity Direct EX w/Expansion Microphones (2305-06350-001)

For Avaya Communication Manager and Definity users, communicating with crystal clear clarity couldn't be easier. Just connect the SoundStation Premier 550D directly into a digital wall jack. You don't need an analog port, analog adapter, or complicated connections to take advantage of natural two-way conversations with Polycom's breakthrough Acoustic Clarity Technology.
Please call for availability.

SoundStation Premier 550D Features

  • Acoustic Clarity Technology - Allows simultaneous natural conversation - the industry's best full duplex for the Avaya Communication Manager and Definity ECS environment
  • Expanded for larger room coverage - Includes 2 expansion microphones for additional room coverage
  • Avaya Communication Manager and Definity ECS conferencing feature - Direct access to your Avaya Communication Manager or Definity conferencing feature allows quick and easy connections of up to 5 endpoints in a single conference call without using a conference bridging service
  • Proven performance - Installed and used worldwide by most major companies
  • Easy to install/easy to use - Connects directly to Avaya Communication Manager or Definity digital telephone systems in minutes - no need for adapters or additional analog lines


  • Compatible with Avaya Definity and Avaya Communication Manager systems
  • Connects directly to a digital station port; the same port used for 2400, 6400, 7400, and 8400 series digital telephones

best live chat
  • Find us on Facebook
  • Find an installer at