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.