Introduction core service example uses (map URLs, look up servers, store voicemail) features multiple DHTs Overview of Operations enrollment locating a DHT lookup becoming a peer Discovery (Cullen) Lookup get/put Data (hgs) Routing (Bruce) Diagnostics (Salman) Replication (Bruce) Transport (Cullen) ICE (Jonathan) Security Consideration (EKR) ------ separate documents ---- DHTs (Bruce) SIP (Jonathan)