Alcatel-Lucent Extended Communication Server Installation & Configuration Manual page 89

Figure 10.10: Configuration Example with Users in the Different Domain and Same LAN
Instant Messaging configuration:
- Domain of identifiers: mydomain.com
- By default allow connection server to server: on
(or add the remote server name in the white list)
- Authorize creation and use of chat rooms: off
- Pref-fill of the buddy list: None
- Number of simultaneous session by user: 1
Firewall configuration:
- Traffic LAN -> ECS on port 5222 (or 5223) must be allowed
- Traffic WAN <-> ECS on port 5269 must be allowed
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