Project Clearwater is backed by Metaswitch Networks. We have discontinued active support for this project as of 1st December 2019. The mailing list archive is available in GitHub. All of the documentation and source code remains available for the community in GitHub. Metaswitch’s Clearwater Core product, built on Project Clearwater, remains an active and successful commercial offering. Please contact clearwater@metaswitch.com for more information. Note – this email is for commercial contacts with Metaswitch. We are no longer offering support for Project Clearwater via this contact.
Memento is an Application Server responsible for providing network-based call lists. It records details of all calls made or received by a subscriber so that a list of recent calls can be displayed on the subscriber's devices.