2 Replies Latest reply on Feb 2, 2017 10:25 AM by tomlmma

    Recommended firmware version for Polycom SoundPoint 321 phones

    tomlmma New Member

      We are running Adtran ECS version 5.5.0.8248 with a handful of Polycom SoundPoint IP 321 phones. They have been freezing up on us at random times. We've been troubleshooting our PoE switches and network jacks. Things are looking OK. As our next step, I would like to try a firmware upgrade on this model phone. Any recommendations for a version? Thank you.