ESTOS ECSTA 7 Networks (3rd-Party) TAPI-Driver for Unify OpenScape Business, Unify OpenScape 4000, Unify OpenScape Voice, Telecom Octupus F X3/X5/X8, F900, Mitel MiVoice Office 400, Mitel MiVoice MX-ONE, Mitel MiVoice Business, Mitel MiVoice 5000, Alcatel-Lucent OmniPCX, Avaya ACM, Avaya IP Office, ECSTA for SIP Phones