VoIP on wired as well as wireless technologies

The below developments illustrate that:

• VoIP isn't limited to the world of wired communication. Wireless VoIP, wVoIP, is possible on cellular, WiFi and WiMAX networks.
• The current convergence trends are not losing any steam.
• Broadband wireless access isn't just for data applications, but for voice as well. After all, there is no fundamental difference between voice or data packets. VoIP erodes the voice market in wired, but also in wireless networks (as long as these offer always-on broadband connections).

A selection:

• Woosh Wireless introduces VoIP over TD-CDMA or VoIP over UMTS TDD: a broadband wireless access technology from IPWireless, in fact a WiMAX competitor.
• Pipex introduces WiMAX, including VoIP over WiMAX, in cooperation with Airspan.
• Calypso launches a dual-mode handset (with Cisco) that enables VoIP over WiFi, and allows you to conduct an ordinary GSM/GPRS call too.
• China Unicom will offer VoIP over cellular, based on BridgePort technology. Earlier E-Plus entered an agreement with Skype.
• Google introduces Google Talk and Microsoft (MSN) acquires Teleo: VoIP over IM or VoIM. Even if this is first and foremost a wired phenomenon, the MSN Messenger is available on cellular networks: MSN has a Chinese joint venture and works with KPN's i-mode. AOL's AIM is available on Virgin Mobile USA.