Protocolo h 248 pdf

When multiple transactions are processed separately, the message does not regulate the processing sequence. A transaction is identified by the TransactionID.

A transaction contains one or multiple actions. One action consists of a series of commands restricted to one context. A transaction starts from the TransHdr. The TransactionID is specified by the sender of a transaction, which is unique in the sender range.

The TransHdr is followed by several actions of this transaction. These actions must be performed in sequence. If a command in an action fails to be executed, the commands after this command in this transaction stop to be executed except for the Optional command.

An important function of introducing transactions is to ensure the successful execution of commands. When a command is identified as Optional, this command can surpass the restriction that one command fails to be executed so that the subsequent commands stop to be executed.

That is, if the optional command fails to be executed, the subsequent commands can continue to be executed. A protocol that defines a type of call control structure.

It is a standard protocol for handling the signaling and session management needed during a multimedia conference. In the structure defined by MGC, call control is separated from service bearer. The H. Supports multimedia connection. The protocol can use either the next or the binary format, which enhances the flexibility. The expandability is better. Complicated and rarely used currently. Supports voice and multimedia services and replaces MGCP in the future.

The product is mature in the industry with a relatively lower price. Mainly supports voice services and the service capability is weak. The rest is the same as the preceding description. Supports only the voice service. Thanks for reading! Related topics:. Voice protocol sharing - the MGCP protocol. All rights reserved.

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Advantages Disadvantages Note H. Complicated and rarely used currently Supports voice and multimedia services and replaces MGCP in the future. MGCP The product is mature in the industry with a relatively lower price.

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