Swisscom Voice VoIP API
Legacy Voice API cluster for controlling a Swisscom VoIP subscriber — placing and listing calls, managing call forwardings, simultaneous ringing and phonebooks, and subscribing to VoIP events. Secured by OAuth 2.0 with read/write scopes such as read-voip-callforwardings and write-voip-callforwardings. Documented only as RAML-rendered HTML in a GitHub wiki last touched in 2024; the gateway still answers with a 401.