This topic explains how to specify an outbound proxy server in the SIP Managed Profile.
To specify an outbound proxy server, call CSIPManagedProfile::SetParameter() with the KSIPOutboundProxy parameter and an IP address.
You can also let the stack automatically discover the proxy address by setting KSIPResolveProxy to ETrue.
By default or if KSIPResolveProxy is set to EFalse, KSIPOutboundProxy sets the IP address of the outbound proxy. If the proxy server cannot be found, the profile enabling fails.
If KSIPResolveProxy is set to ETrue, KSIPOutboundProxy sets the backup IP address for the outbound proxy. The SIP stack attempts to find the proxy through a DHCP request and only uses the backup address if the proxy discovery process fails.
Backwards compatibility note: "sip:0.0.0.0" is a valid value for KSIPOutboundProxy. It is equivalent to requesting DCHP discovery without specifying a backup address.
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