Ruckuss Wireless, at http://www.ruckuswireless.com, is a popular service provider as is evident by the crowds at their booth at CommunicAsia 2009 in Singapore and I remember the same at their booth at EXPOCOMM Mexico 2007. Michael Paparella was the spokesperson on this video on Youtube.
The company offers solutions for multi-media in the WIFI industry. They choose to participate in CommunicAsia each year because of the yearly accomplishment of building new business solutions with current and new partners.
One common theme I heard over and over at CommunicAsia 2009 from participants, whether sponsors, attendees, exhibitors and other press agents was that CommunicAsia draws more participation from the right people and companies in the APEC region ... and second seems to be PTC in Hawaii every January and third ITCN Asia every August in Karachi.
DIDXchange at http://www.didx.net is a media partner for CommunicAsia and ITCN Asia and also press agent via its media tools on podcast, video, photo gallery, blogs and DID/DDI media channel at http://www.tmcnet.com/channels/did-ddi/.