Kamailio(OpenSER)開(kāi)源SIP服務(wù)器-呼叫重定向

時(shí)間：2015-03-24　來(lái)源：www.130131.com　作者：徐寶國(guó)　點(diǎn)擊：次

主頁(yè)（http://www.130131.com）：Kamailio(OpenSER)開(kāi)源SIP服務(wù)器-呼叫重定向

Kamailio是一個(gè)開(kāi)源的SIP服務(wù)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.
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/

我們使用Kamailio主要用在SIP dispatcher server，即SIP redirect server
安裝及配置手冊(cè)如下
一．安裝
1．依賴包：
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．源代碼安裝
make，make modules，make install
或者make all，make install
參考：
3．啟動(dòng)：kamctl start
4．重啟：kamctl restart
5．監(jiān)控服務(wù)狀態(tài)：kamctl moni
6．MySQL配置：
1）安裝：
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 創(chuàng)建數(shù)據(jù)庫(kù)：kamdbctl create
6.2管理員登錄：user 'admin' with password ' openserrw '
6.3 添加用戶：kamctl add <name> <password> <email>
6.4 默認(rèn)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．腳本
參考文檔：
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．負(fù)載均衡Load Balancing參考：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 <setid> <destination> <flags> <description>
.......................... add gateway
dispatcher rmgw <id> ................ delete gateway
查看載入的配置：kamctl dispatcher dump
修改后重新載入配置：kamctl dispatcher reload

如需使用，需安裝MySQL-client-community-5.1.32-0.rhel5.i386.rpm
否則報(bào)錯(cuò)：ERROR: This command requires a database engine - none was loaded

五．與Asterisk對(duì)接負(fù)載均衡注意事項(xiàng)：sip.conf
注釋如下行
;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
測(cè)試：
登錄10.10.10.57上的6000，登錄10.10.10.56上的5000
從6000呼叫5000，會(huì)呼叫10.10.10.136上的5000，10.136重定向到10.56
六．按號(hào)碼段重定向網(wǎng)關(guān)
配置kamailio.cfg
使用正則表達(dá)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
測(cè)試：
登錄10.10.10.57上的6000，登錄10.10.10.56上的5000
從6000呼叫5000，會(huì)呼叫10.10.10.136上的5000，10.136重定向到10.56
從6000呼叫8002，會(huì)呼叫10.10.10.136上的8002，10.136重定向到10.54