SpeedDial Module

Elena-Ramona Modroiu

   voice-system.ro

Edited by

Elena-Ramona Modroiu

   Copyright  2004 voice-system.ro
     _________________________________________________________

   Table of Contents
   1. User's Guide

        1.1. Overview
        1.2. Dependencies

              1.2.1. OpenSER Modules
              1.2.2. External Libraries or Applications

        1.3. Exported Parameters

              1.3.1. db_url (string)
              1.3.2. user_column (string)
              1.3.3. domain_column (string)
              1.3.4. sd_user_column (string)
              1.3.5. sd_domain_column (string)
              1.3.6. new_uri_column (string)
              1.3.7. domain_prefix (string)
              1.3.8. use_domain (int)

        1.4. Exported Functions

              1.4.1. sd_lookup(table)

        1.5. Installation & Running

              1.5.1. Database setup
              1.5.2. OpenSER config file

   2. Developer's Guide
   3. Frequently Asked Questions

   List of Examples
   1-1. Set db_url parameter
   1-2. Set user_column parameter
   1-3. Set domain_column parameter
   1-4. Set sd_user_column parameter
   1-5. Set sd_domain_column parameter
   1-6. Set new_uri_column parameter
   1-7. Set domain_prefix parameter
   1-8. Set use_domain parameter
   1-9. sd_lookup usage
   1-10. speeddial sql script
   1-11. OpenSER config script - sample speeddial usage
     _________________________________________________________

Chapter 1. User's Guide

1.1. Overview

   This module provides on-server speed dial facilities. An user
   can store records consisting of pairs short numbers (2 digits)
   and SIP addresses into a table of SER. Then it can dial the
   two digits whenever he wants to call the SIP address
   associated with those digits.
     _________________________________________________________

1.2. Dependencies

1.2.1. OpenSER Modules

   The following modules must be loaded before this module:

     * database module (mysql, dbtext, ...).
     * sl - stateless module.
     _________________________________________________________

1.2.2. External Libraries or Applications

   The following libraries or applications must be installed
   before running OpenSER with this module loaded:

     * None.
     _________________________________________________________

1.3. Exported Parameters

1.3.1. db_url (string)

   The URL of database where the table containing speed dial
   records.

   Default value is DEFAULT_RODB_URL. 

   Example 1-1. Set db_url parameter
...
modparam("speeddial", "db_url", "mysql://openser:xxx@localhost/openser"
)
...
     _________________________________________________________

1.3.2. user_column (string)

   The name of column storing the user name of the owner of the
   speed dial record.

   Default value is "username". 

   Example 1-2. Set user_column parameter
...
modparam("speeddial", "user_column", "userid")
...
     _________________________________________________________

1.3.3. domain_column (string)

   The name of column storing the domain of the owner of the
   speed dial record.

   Default value is "domain". 

   Example 1-3. Set domain_column parameter
...
modparam("speeddial", "domain_column", "userdomain")
...
     _________________________________________________________

1.3.4. sd_user_column (string)

   The name of the column storing the user part of the short dial
   address.

   Default value is "sd_username". 

   Example 1-4. Set sd_user_column parameter
...
modparam("speeddial", "sd_user_column", "short_user")
...
     _________________________________________________________

1.3.5. sd_domain_column (string)

   The name of the column storing the domain of the short dial
   address.

   Default value is "sd_domain". 

   Example 1-5. Set sd_domain_column parameter
...
modparam("speeddial", "sd_domain_column", "short_domain")
...
     _________________________________________________________

1.3.6. new_uri_column (string)

   The name of the column containing the URI that will be use to
   replace the short dial URI.

   Default value is "new_uri". 

   Example 1-6. Set new_uri_column parameter
...
modparam("speeddial", "new_uri_column", "real_uri")
...
     _________________________________________________________

1.3.7. domain_prefix (string)

   If the domain of the owner (From URI) starts with the value of
   this parameter, then it is stripped before performing the
   lookup of the short number.

   Default value is NULL. 

   Example 1-7. Set domain_prefix parameter
...
modparam("speeddial", "domain_prefix", "tel.")
...
     _________________________________________________________

1.3.8. use_domain (int)

   The parameter specifies wheter or not to use the domain when
   searching a speed dial record (0 - no domain, 1 - use domain
   from From URI, 2 - use both domains, from From URI and from
   request URI).

   Default value is 0. 

   Example 1-8. Set use_domain parameter
...
modparam("speeddial", "use_domain", 1)
...
     _________________________________________________________

1.4. Exported Functions

1.4.1. sd_lookup(table)

   The function lookups the short dial number from R-URI in
   'table' and replaces the R-URI with associated address.

   Meaning of the parameters is as follows:

     * table - The name of the table storing the speed dial
       records.

   This function can be used from REQUEST_ROUTE.

   Example 1-9. sd_lookup usage
...
# 'speed_dial' is the default table name created by openser db script
if(uri=~"sip:[0-9]{2}@.*")
        sd_lookup("speed_dial");
...
     _________________________________________________________

1.5. Installation & Running

1.5.1. Database setup

   Before using speeddial module, you have to create the database
   table where the short dial addresses are stored. If the table
   was not created at the installation time, you can use the
   following SQL script (tested with MySQL) as template.
   Database, the table name, and column names can be set with
   module parameters so they can be changed.

   Example 1-10. speeddial sql script
...
CREATE TABLE speed_dial (
  username varchar(64) NOT NULL default '',
  domain varchar(128) NOT NULL default '',
  sd_username varchar(64) NOT NULL default '',
  sd_domain varchar(128) NOT NULL default '',
  new_uri varchar(192) NOT NULL default '',
  description varchar(64) NOT NULL default '',
  PRIMARY KEY (username, domain, sd_domain, sd_username)
);

...
     _________________________________________________________

1.5.2. OpenSER config file

   Next picture displays a sample usage of speeddial.

   Example 1-11. OpenSER config script - sample speeddial usage
...
#
# $Id: README,v 1.6 2006/07/10 13:51:47 bogdan_iancu Exp $
#
# sample config script to use speeddial module
#

# ----------- global configuration parameters ------------------------

check_via=no    # (cmd. line: -v)
dns=no          # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
fifo="/tmp/ser_fifo"

# ------------------ module loading ----------------------------------

loadmodule "/usr/local/lib/openser/modules/sl.so"
loadmodule "/usr/local/lib/openser/modules/tm.so"
loadmodule "/usr/local/lib/openser/modules/rr.so"
loadmodule "/usr/local/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/lib/openser/modules/registrar.so"
loadmodule "/usr/local/lib/openser/modules/textops.so"
loadmodule "/usr/local/lib/openser/modules/mysql.so"
loadmodule "/usr/local/lib/openser/modules/speeddial.so"

# ----------------- setting module-specific parameters ---------------

# -- usrloc params --

modparam("usrloc", "db_mode",   0)

# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)

# -------------------------  request routing logic -------------------

# main routing logic
route{

        # initial sanity checks
        if (!mf_process_maxfwd_header("10"))
        {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if (msg:len >=  max_len )
        {
                sl_send_reply("513", "Message too big");
                break;
        };

        if (!method=="REGISTER") record_route();

        if (loose_route())
        {
                if (!t_relay())
                {
                        sl_reply_error();
                };
                break;
        };

        if (!uri==myself)
        {
                if (!t_relay())
                {
                        sl_reply_error();
                };
                break;
        };

        if (uri==myself)
        {
                if (method=="REGISTER")
                {
                        save("location");
                        break;
                };

                if(uri=~"sip:[0-9]{2}@.*")
                        sd_lookup("speeddial");

                lookup("aliases");
                if (!uri==myself)
                {
                        if (!t_relay())
                        {
                                sl_reply_error();
                        };
                        break;
                };

                if (!lookup("location"))
                {
                        sl_send_reply("404", "Not Found");
                        break;
                };
        };

        if (!t_relay())
        {
                sl_reply_error();
        };
}


...
     _________________________________________________________

Chapter 2. Developer's Guide

   The module does not provide any API to use in other OpenSER
   modules.
     _________________________________________________________

Chapter 3. Frequently Asked Questions

   3.1. Where can I post a question about this module?
   3.2. How can I report a bug?

   3.1. Where can I post a question about this module?

   Sent an email to <team@openser.org> or, if you want to keep
   the mail private, send it to <ramona@voice-system.ro>.

   Remember: first at all, check if your question was already
   answered on one of OpenSER mailing lists:

     * User Mailing List -
       http://openser.org/cgi-bin/mailman/listinfo/users
     * Developer Mailing List -
       http://openser.org/cgi-bin/mailman/listinfo/devel

   3.2. How can I report a bug?

   Accumulate as much as possible information (OpenSER version,
   ser -V output, your OS (uname -a), OpenSER logs, network
   dumps, core dump files, configuration file) and send a mail to
   <support@voice-system.ro>