Page-Mode Messaging

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In Microsoft Unified Communications Managed API (UCMA), an endpoint can send messages to another endpoint without establishing a signaling session. An operation of this type is referred to as page-mode messaging. In page mode, a message is delivered from the source to the target without a handshake being required between the two endpoints. UCMA exposes the SendMessage() overloaded methods for sending a page-mode message synchronously, and the BeginSendMessage() overloaded methods and the EndSendMessage(IAsyncResult) method for sending a page-mode message asynchronously.

The recipient of a page-mode message must subscribe to the MessageReceived event in order to receive this type of message.

For more information, see Sending and Receiving Page-Mode Messages.