开源 SIP 服务器 Kamailio

码农软件 · 软件分类 · 开源SIP项目 · 2020-02-20 22:59:53

软件介绍

======

Kamailio是一个开源的SIP服务器,原名OpenSER 

Kamailio is an Open Source, GPL2, SIP Server Routing Platform. It is written in C for Linux/Unix plaforms and focuses on performance, flexibility and security.

On Nov 04, 2008, Kamailio and SIP Express Router have started the SIP Router Project.

Kamailio 诞生于 2005 年 7 月,它是从德国 FhG FOKUS 研究所主导的 SIP Express Router(SER) 项目组分裂出来的。新项目建立的目标是创建一个开放的开发环境,以建立一个强大的可扩展的开源 SIP 服务器。Kamailio 是个纯粹的 SIP 服务器,它可以作为 PROXY、注册服务器、重定向服务器,也可作为简单的 PRESENCE 服务器。

Web links

  • Home page with new project name: http://www.kamailio.org

  • Home page with old project name: http://www.openser-project.org

  • SourceForge.net Project page: http://sourceforge.net/projects/openser/

Features

  • SIP proxy/registrar/redirect server (RFC3261, RFC3263)

  • UDP/TCP/TLS/SCTP support

  • Transactional stateful proxy

  • Modular architecture

  • Programmable configuration file

  • ENUM support

  • Call Processing Language (CPL)

  • Gateway to sms or xmpp

  • Authentication, authorization and accounting via Radius or database

  • NAT traversal system

  • Least cost routing

  • Load balancing

  • Carrier routing

  • Multiple database backends: MySQL, Postgres, Oracle, BDB or flat files

  • SIMPLE Presence Server (IETF SIMPLE extensions - rich presence)

  • Dialog Info Presence - SLA/BLA

  • XCAP and RLS

  • Presence User Agent

  • Dialog Stateful Proxy

  • Instant Messaging

    • Offline message storage

    • Instant messaging conferencing

  • SNMP support

  • Perl Programming Interface

  • Java SIP Servlet Application server

  • Over 80 modules (extensions)

Documentation

  • Main Documentation Page - http://www.kamailio.org/docs/

  • Dokuwiki Page - http://www.kamailio.org/dokuwiki/

我们使用Kamailio主要用在SIP dispatcher server,即SIP redirect server
安装及配置手册如下

一.安装
1.依赖包:
libmysqlclient & libz (zlib) :mysql DB support (the db_mysql module) Shared libraries

                        MySQL-shared-5.1.32-0.glibc23.i386.rpm

                        MySQL-devel-community-5.1.32-0.rhel5.i386.rpm


libxml2:cpl-c (Call Processing Language) or the presence modules (presence and pua*)
libperl:perl scripting from you config file (perl module)
2.源代码安装
make,make modules,make install
或者make all,make install
参考:
3.启动:kamctl start
4.重启:kamctl restart
5.监控服务状态:kamctl moni
6.MySQL配置:
1)安装:
edit Makefile.var files to include the MySQL module
vim Makefile.vars
Uncomment the next line in the file:
MODS_MYSQL=on
cp /usr/local/lib/mysql/libmysqlclient.so.16 /usr/lib

Edit now /usr/local/etc/kamailio/kamctlrc and add:
DBENGINE=MYSQL
SIP_DOMAIN=pryko.com
6.1 创建数据库:kamdbctl create
6.2管理员登录:user 'admin' with password ' openserrw '
6.3 添加用户:kamctl add
6.4 默认值:database url, users and passwords
  - DEFAULT_DB_URL="mysql://opensips:opensipsrw@localhost/opensips"
  - r/w user: openser; passwd: openserrw
  - r/o user: openserro; passwd: openserro

二.配置
1.配置文件 kamailio.cfg
/usr/local/etc/kamailio/kamailio.cfg
2.配置文件 kamctlrc
/usr/local/etc/kamailio/kamctlrc

三.脚本
参考文档:
Kamailio Wiki
http://www.kamailio.com/dokuwiki
Cookbooks and Reference
http://www.kamailio.com/dokuwiki/doku.php/core-cookbook:1.5.x
Kamalio 1.5.x Module Functions Index
http://www.kamailio.com/dokuwiki/doku.php/modules:1.5.x:index-functions


四.负载均衡Load Balancing
参考:http://www.kamailio.org/dokuwiki/doku.php/asterisk:load-balancing-and-ha
4.1配置文件 kamailio.cfg
loadmodule("dispatcher.so")
modparam("dispatcher", "list_file", "/usr/local/etc/kamailio/dispatcher.list")
modparam("dispatcher", "force_dst", 1)
4.2 ---dispatcher.list----文件
# group sip addresses of your * units
1 sip:221.5.152.171:5060
1 sip:221.5.152.170:5060
4.3 kamctl命令:kamctl dispatcher show
-- command 'dispatcher' - manage dispatcher
  * Examples:  dispatcher addgw 1 sip:1.2.3.1:5050 1 'outbound gateway'
  *            dispatcher addgw 2 sip:1.2.3.4:5050 3 ''
  *            dispatcher rmgw 4
dispatcher show ..................... show dispatcher gateways
dispatcher reload ................... reload dispatcher gateways
dispatcher dump ..................... show in memory dispatcher gateways
dispatcher addgw
            .......................... add gateway
dispatcher rmgw................ delete gateway

查看载入的配置:kamctl dispatcher dump
修改后重新载入配置:kamctl dispatcher reload

 

如需使用,需安装MySQL-client-community-5.1.32-0.rhel5.i386.rpm
否则报错:ERROR: This command requires a database engine - none was loaded



五.与Asterisk对接负载均衡
注意事项:sip.conf
注释如下行
;canreinvite=no ; Asterisk by default tries to redirect

Asterisk#1  10.10.10.56
配置sip.conf
[5000]
type=friend
;username=5000
secret=5000_phone2
callerid=5000
qualify=yes ; Qualify peer is no more than 2000 ms away
nat=no ; This phone is natted
host=dynamic ; This device registers with us
;canreinvite=no ; Asterisk by default tries to redirect
配置extension.conf
[default]
exten => 6000,1,Dial(SIP/6000@10.10.10.57,60)
exten => 5000,1,Dial(SIP/5000,60)

Asterisk#2  10.10.10.57
配置sip.conf
[6000]
type=friend
;username=6000
secret=6000_phone2
callerid=6000
qualify=yes ; Qualify peer is no more than 2000 ms away
nat=no ; This phone is natted
host=dynamic ; This device registers with us
;canreinvite=no ; Asterisk by default tries to redirect
配置extension.conf
[default]
exten => 6000,1,Dial(SIP/6000,60)
exten => 5000,1,Dial(SIP/5000@10.10.10.136,60)

Kamailio 10.10.10.136
配置kamailio.cfg

loadmodule "dispatcher.so"
modparam("dispatcher", "list_file", "/usr/local/etc/kamailio/dispatcher.list")

route{
if ( !mf_process_maxfwd_header("10") )
{
  sl_send_reply("483","To Many Hops");
  drop();
};
ds_select_dst("1", "0");
forward();
}
配置dispatcher.list
# line format
# setit(integer) destination(sip uri) flags (integer, optional)
1 sip:10.10.10.56:5060

测试
登录10.10.10.57上的6000,登录10.10.10.56上的5000
从6000呼叫5000,会呼叫10.10.10.136上的5000,10.136重定向到10.56

六.按号码段重定向网关
配置kamailio.cfg
使用正则表达式
route{
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                exit;
        }
if (uri=~"^sip:5[0-9]+@10.10.10.136$") {
  if (is_method("INVITE")) {
  ds_select_dst("1", "0");
  forward();
  exit;
  }
}
if (uri=~"^sip:8[0-9]+@10.10.10.136$") {
  if (is_method("INVITE")) {
  ds_select_dst("2", "0");
  forward();
  exit;
  }
}
sl_send_reply("404","Not here");
exit;
}
配置dispatcher.list
# line format
# setit(integer) destination(sip uri) flags (integer, optional)
1 sip:10.10.10.56:5060 #1
2 sip:10.10.10.54:5060

测试
登录10.10.10.57上的6000,登录10.10.10.56上的5000
从6000呼叫5000,会呼叫10.10.10.136上的5000,10.136重定向到10.56
从6000呼叫8002,会呼叫10.10.10.136上的8002,10.136重定向到10.54

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