The TEMPEST conference speaker Modulus SP 20T-A is compliant with the NATO SDIP-27 standard,
Level A. It can be used for medium-sized conferences with up to 8 participants.
The Modulus SP 20T-A is based on the Sennheiser Epos SP 20T speaker phone. It is easy to install and operate, and comes with either DSUB-9 or standard USB connectors.