Support for H.239 Generic Messages

This section describes the Oracle® Enterprise Session Border Controller’s support for H.239 Generic Messages.

Generic Message	Description
Generic Request	flowControlReleaseRequest—Used when a device wants to add a channel toward an MCU that has sent multipointConference, or if the device wants to increase a channel bit rate when the channel is flow-controlled. The message has the channelId, which is the logicalChannelNumber of the channel. The Oracle® Enterprise Session Border Controller proxies this message, replacing the channelId with the logicalChannelNumber of its channel. presentationTokenRequest—Request by the sender to acquire the indicated token. The message has the channelId, which is the logicalChannelNumber of the channel. The Oracle® Enterprise Session Border Controller proxies this message, replacing the channelId with the logicalChannelNumber of its channel.
Generic Response	flowControlReleaseResponse—Sent in response to the flowControlReleaseRequest, either acknowledging or rejecting the request. The “acknowledge” response indicates the far-end device intends to make a best-effort attempt to comply with the request. The exact bit rate requested may not be allocated. The reject response indicates that the far-end device does not intend to comply with the request. The response contains the channelId that was sent in the request. While proxying the response, the Oracle® Enterprise Session Border Controller will replace the channelId with the channelId it received in the request. presentationTokenResponse—Sent in response to the presentationTokenRequest. The response will either confirm or reject the assignment of the indicated token to the sender of the presentationTokenRequest. The response contains the channelId that was received in the request. While proxying the response, the Oracle® Enterprise Session Border Controller will replace the channelId with the channelId it received in the request.
Generic Command	presentationTokenRelease—Sent by the device holding the token in order to relinquish the token. The message has the channelId, which is the logicalChannelNumber of the channel. The Oracle® Enterprise Session Border Controller proxies this message, replacing the channelId with the logicalChannelNumber of its channel.
Generic Indication	presentationTokenIndicateOwner—Indicates who owns the token. The message has the channelId, which is the logicalChannelNumber of the channel. The Oracle® Enterprise Session Border Controller proxies this message, replacing the channelId with the logicalChannelNumber of its channel.