# &adminguide;

## Overview

The main goal of the module is to offload the intermediate header processing into the XAVI dynamic container as well as provide with high level methods and pseudovariables to simplify &sip; message header modifications.

## Dependencies

### &kamailio; Modules

The following modules must be loaded before this module:

- uac.

- tm.

  Needed only if auto_msg parameter is set to 1.

### External Libraries or Applications

The following libraries or applications must be installed before running &kamailio; with this module loaded:

- None.

## Exported Variables

- $x_hdr

- $x_fu

- $x_fU

- $x_fd

- $x_fn

- $x_ft

- $x_tu

- $x_tU

- $x_td

- $x_tn

- $x_tt

- $x_rs

- $x_rr

Exported pseudo-variables are documented at &kamwikilink;.