Greetings, I'm trying to put together a programme regarding multimedia telecom and have been working with H.323. My perception is this standard did poorly due to generally insufficient bandwidth, a small universe of QoS and hard to support port usage. On the other hand, SIP looks like a winner the same way bluetooth did. That is, the blemishes only show when the thing exists. Supporting H.323 through a firewall/proxy seems intrinsically difficult. On the other hand, the wildcard port usage might have subtle value in scalability. I gather SIP is more old school, like a telnet session, more or less containing more complex objects; (speech, etc). Any opinions on this? I'm not complaining but am observing the zero length attached viruses in my attachment directory from this list just passed 100! Regards to All Dan K
