Input (grade 11): Ekiga supports both the SIP and H. 323 (based on OPAL) protocols and is fully interoperable with any other SIP compliant application and with Microsoft NetMeeting.
Output (grade 11): Ekiga supports both the SIP and H. 323 (based on OpenH323) protocols and is fully interoperable with any other SIP compliant application and with Microsoft NetMeeting.