PUA Bridged Line Appearances

Anca-Maria Vamanu

   Voice Sistem SRL

Edited by

Anca-Maria Vamanu

   Copyright © 2007 Voice Sistem SRL
     __________________________________________________________________

   Table of Contents

   1. Admin Guide

        1. Overview
        2. Dependencies

              2.1. Kamailio Modules
              2.2. External Libraries or Applications

        3. Parameters

              3.1. default_domain(str)
              3.2. header_name(str)
              3.3. outbound_proxy(str)
              3.4. server_address(str)

        4. Functions

              4.1. bla_set_flag
              4.2. bla_handle_notify

   List of Examples

   1.1. Set default_domain parameter
   1.2. Set header_name parameter
   1.3. Set outbound_proxy parameter
   1.4. Set server_address parameter
   1.5. bla_set_flag usage
   1.6. bla_handle_notify usage

Chapter 1. Admin Guide

   Table of Contents

   1. Overview
   2. Dependencies

        2.1. Kamailio Modules
        2.2. External Libraries or Applications

   3. Parameters

        3.1. default_domain(str)
        3.2. header_name(str)
        3.3. outbound_proxy(str)
        3.4. server_address(str)

   4. Functions

        4.1. bla_set_flag
        4.2. bla_handle_notify

1. Overview

   The pua_bla module enables Bridged Line Appearances support according
   to the specifications in draft-anil-sipping-bla-03.txt.

2. Dependencies

   2.1. Kamailio Modules
   2.2. External Libraries or Applications

2.1. Kamailio Modules

   The following modules must be loaded before this module:
     * usrloc.
     * pua.
     * presence.

2.2. External Libraries or Applications

   The following libraries or applications must be installed before
   running Kamailio with this module loaded:
     * libxml.

3. Parameters

   3.1. default_domain(str)
   3.2. header_name(str)
   3.3. outbound_proxy(str)
   3.4. server_address(str)

3.1. default_domain(str)

   The default domain for the registered users to be used when
   constructing the uri for the registrar callback.

   Default value is “NULL”.

   Example 1.1. Set default_domain parameter
...
modparam("pua_bla", "default_domain", "kamailio.org")
...

3.2. header_name(str)

   The name of the header to be added to Publish requests. It will contain
   the uri of the user agent that sent the Notify that is transformed into
   Publish. It stops sending a Notification with the same information to
   the sender.

   Default value is “NULL”.

   Example 1.2. Set header_name parameter
...
modparam("pua_bla", "header_name", "Sender")
...

3.3. outbound_proxy(str)

   The outbound_proxy uri to be used when sending Subscribe requests.

   Default value is “NULL”.

   Example 1.3. Set outbound_proxy parameter
...
modparam("pua_bla", "outbound_proxy", "sip:proxy@kamailio.org")
...

3.4. server_address(str)

   The IP address of the server.

   Example 1.4. Set server_address parameter
...
modparam("pua_bla", "server_address", "sip:bla@160.34.23.12")
...

4. Functions

   4.1. bla_set_flag
   4.2. bla_handle_notify

4.1.  bla_set_flag

   The function is used to mark REGISTER requests made to a BLA AOR. The
   modules subscribes to the registered contacts for dialog;sla event.

   Example 1.5. bla_set_flag usage
...
if(is_method("REGISTER") && to_uri=~"bla_aor@kamailio.org")
        bla_set_flag();
...

4.2.  bla_handle_notify

   The function handles Notify requests sent from phones on the same BLA
   to the server. The message is transformed in Publish request and passed
   to presence module for further handling. in case of a successful
   processing a 2xx reply should be sent.

   Example 1.6. bla_handle_notify usage
...
if(is_method("NOTIFY") && to_uri=~"bla_aor@kamailio.org")
{
                if( bla_handle_notify() )
                        t_reply("200", "OK");
}
...
