Example

The following illustration shows two examples of early media suppression.

1. Caller UE1 makes a call to the PSTN media gateway (MGW). The INVITE traverses from UE1 to the Oracle® Enterprise Session Border Controller through the softswitch to the MGW. The Oracle® Enterprise Session Border Controller allows early media from the core to reach UE1.
2. The PSTN MGW makes a call to UE1. The INVITE traverses to the Oracle® Enterprise Session Border Controller and to UE1. The Oracle® Enterprise Session Border Controller blocks all early media to and from UE1 until a 200 OK is received.