SIP REFER with Replaces
To support enterprise and call center applications, the Oracle Communications Session Border Controller provides the ability for one party participating in a three-way call to request direct connectivity between the other two parties and to leave the call silently when that connectivity is established. SIP supports this function using the Replaces header in a REFER message, also known as REFER with Replaces.
The most common application of REFER with Replaces handling occurs in a high-level sequence like this:
SIP REFER with Replaces Configuration
You enable SIP REFER with Replaces handling either in the realm configuration or in the session agent configuration. This section show you how to configure the feature for session agent, though the steps are the same for adding this feature to a realm.
To enable sending ReINVITES to a referred agent on an existing session/dialog: