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Re: Update on Google talk

On 8/25/05, Matt Thorne <mlthorne@xxxxxxxxx> wrote:
> Don't know about other VOIP's but jabber compliant programs use XMPP
> which creates TCP connections.
> google talk uses port 5222

Certainly the messaging parts of XMPP use TLS over TCP. But the actual
VoIP is almost certainly going to be a UDP session using the TCP to

However, since NATs have broken end-to-end addressing you'll probably
find that gtalk will use a TCP session for VoIP as a last resort to
cope with evil firewalls. So it might all work yet ;)


Adam Langley                                      agl@xxxxxxxxxxxxxxxxxx
http://www.imperialviolet.org                       (+44) (0)7906 332512
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