If your application determines that it wants to accept the registration request from the far end device, then it should set this member to a non zero value before returning execution back to the media engine from the event handler. If the registration request is not acceptable, then this member should be set to zero.

Used as binding information. Devices generally set this to their IP address.

Used as binding information. Devices generally set this to the same value as the pToName member.

Used as binding information. Devices generally set this to their UDP port they are using for receiving protocol data.

The time in seconds the far end device wants to be registered. If this value is set to zero, then the far end device no longer wishes to be registered.

A string that contains the raw SIP protocol REGISTER message.

The real IP address that the registration request came from. A registration based application may have use for this information if the telephony network environment uses NAT routers and/or firewall network elements.

The real network port that the registration request came from. A registration based application may have use for this information if the telephony network environment uses NAT routers and/or firewall network elements.

The domain name the far end is using.

The host name of the device that is registering.

The name the far end device wants to register. This name (or extension phone number) is used by your application as the key for looking up the binding address information for a user (i.e IP address and port of the registered user).

The network port of the device that is registering.