Admin Manual
MWP1100A
34
♦ Outbound Proxy For SMS : ensures service in case the message user is using a NAT or a wireless router.
♦ Use Loose Routing : supports the stateful proxy when the outbound proxy is being used.
- Stateful Proxy : remembers information about the request message from a phone to the server, and uses
the saved information to handle additional process logic when the response is returned.
- Stateless Proxy : When a phone sends a request message, it checks the location and sends a request. Once
the request is sent, no information remains in it. If the response is received, it decides where to send it,
using the Via field. Although it is simpler because there’s no memory or socket, the stateful proxy is
considered more appropriate for providing service.
▣ Backup Servers
♦ Backup Server : Each of Registrar, Proxy, Presence and SMS independently has a backup function. They
send packets to the backup server when the main servers don’t work.
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