Kamailio是一個開源的SIP服務器,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.啓動:kamctl start
4.重啓:kamctl restart
5.監控服務狀態: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 創建數據庫: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
修改後重新載入配置:kamctl dispatcher reload
如需使用,需安裝MySQL-client-community-5.1.32-0.rhel5.i386.rpm
否則報錯:ERROR: This command requires a database engine - none was loaded
五.與Asterisk對接負載均衡
注意事項:sip.conf
註釋如下行
;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/[email protected],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/[email protected],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,會呼叫10.10.10.136上的5000,10.136重定向到10.56
六.按號碼段重定向網關
配置kamailio.cfg
使用正則表達式
route{
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
exit;
}
if (uri=~"^sip:5[0-9][email protected]$") {
if (is_method("INVITE")) {
ds_select_dst("1", "0");
forward();
exit;
}
}
if (uri=~"^sip:8[0-9][email protected]$") {
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,會呼叫10.10.10.136上的5000,10.136重定向到10.56
從6000呼叫8002,會呼叫10.10.10.136上的8002,10.136重定向到10.54