ekiga 1.99.1-0ubuntu4 (sparc binary) in ubuntu dapper

 H.323 compatible videoconferencing and VOIP/IP-Telephony application
 that allows you to make audio and video calls to remote users with
 H.323 hardware or software (such as Microsoft Netmeeting).
 .
 It supports all modern videoconferencing features, such as registering
 to an ILS directory, gatekeeper support, making multi-user conference
 calls using an external MCU, using modern Quicknet telephony cards,
 and making PC-To-Phone calls.