Videoconferencing's (r)evolution continues
Internet Protocol (IP)
- No per-minute long-distance calling charges are incurred.
- The system offers greater accessibility.
- IP systems let organizations converge communication networks.
- The technology allows better rich-media integration and Web collaboration.
- IP connections are on virtually every desktop.
- IT workers are already familiar and knowledgeable with IP.
- Worldwide IP infrastructure is always growing.
- A small percentage of videoconferences currently run over IP.
- Compatibility and interoperability concerns still exist.
- The technology requires dedicated, high-bandwidth networks, such as WAN.
- Transmissions can be bogged down with heavy network traffic.
- Quality-of-service is not guaranteed.
- Audio and data skip more commonly than on ISDN.
- Industry still in its infancy.
Integrated Services Digital Networks (ISDN)
- ISDN is a proven, reliable technology.
- It's the most widely used method of videoconferencing.
- The technology delivers clear transmission of voice and video.
- The system offers wide compatibility.
- Technology and protocols are already established.
- ISDN can handle time-sensitive data, such as synced video and audio, better than IP.
- The networks follow the existing telecommunication infrastructure.
- Communication lines are well-established in the United States and Europe.
- The bandwidth has guaranteed performance.
- Per-minute long-distance charges are incurred.
- Rich-media integration and Web collaboration are difficult.
- The system is too expensive to put on every desktop.
- ISDN connections are unavailable in many rural areas.
- Organizations must maintain a network solely for videoconferencing.