DTMF Transparency for IWF

In certain vendors’ implementations of DTMF during SIP/H.323 IWF, there have been discrepancies between the RFC 2833 and UII/INFO negotiations and what type of messages actually get sent. Instead of correcting these errors on its own end, the Oracle® Enterprise Session Border Controller has perpetuated these inaccuracies.

To ensure that the Oracle® Enterprise Session Border Controller always sends the correctly negotiated protocols, a media-manager-config parameter called translate-non-rfc2833-event has been created. When translate-non-rfc2833-event is enabled, the Oracle® Enterprise Session Border Controller always sends the type of messages that were initially negotiated, regardless of the type of messages it may be receiving.