|In order to talk with users on any of these services, you have to already have a user account with that particular service. This is necessary so that YOU show up on THEIR "buddy lists" (since the other services don't support messages to Jabber users.. yet!).
The specific procedure for adding a gateway will vary by client, but typically you have to first tell your client your username and password for the remote service (e.g. AIM), and then when you add users you'll be able to either put in their Jabber ID or their other service ID (and then select which service they're on). We will try our best to always provide working gateways (transports) to the big four IM services, but they are known to change their protocol at random and even block ip ranges to foil gateway services like ours. There should always be public gateways you can use if ours are mis-behaving though!
Note, there are some clients that don't use gateways to communicate with the other networks, instead they just have all the guts for talking to AIM, ICQ, MSN, and Yahoo! built-in. These clients may generally be more reliable for contacting the other networks, but the downside is if one of the companies breaks their protocol you'll have to download a new version of your client rather than just waiting for us to update our gateways transparently.
Eventually if Jabber reaches a critical mass the major services will have no choice but to open up their protocols to it! :)
Last updated: Feb 17, 2004.