> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/protocols/sending-transaction-and-dialogue-portions.md).

# Sending transaction and dialogue portions

The **transaction data send** (request/response) message is used to add transaction and dialogue portions to a TCAP message. This message also activates TCAP message assembly and transmission to destination signaling point (peer TCAP/service user).

The **transaction portion** contains the following parameters:

* TCAP userpart handle
* TCAP transaction identifier
* Message type identifier
* End flag indicator
* Calling address
* Called address
* Quality of service parameters
* ISNI parameters
* Message importance indicator

The **dialogue portion** contains the following parameters:

* Dialogue parameters
* User information buffer


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://prosbcdocs.telcobridges.com/telecom-references/protocols/sending-transaction-and-dialogue-portions.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.