How does Kamailio work?

How does Kamailio work?

The initial name of the project was SIP Express Router (aka SER) and that says it all: Kamailio is a SIP router at the core. It means that it works at the lower layer of SIP packets, routing each and every SIP message that it receives based on the policies specified in the configuration file.

What is Kamailio IMS?

Kamailio IMS capabilities. The Kamailio IMS extensions provide the full functionality of the P-CSCF, I-CSCF and S-CSCF. External functionality such as UE, PCRF, HSS, OCS and OFCS are not included. A Kamailio SIP Server could be used as an example SIP AS.

Is Kamailio a SIP proxy?

Kamailio® (successor of former OpenSER and SER) is an Open Source SIP Server released under GPLv2+, able to handle thousands of call setups per second.

How many calls can Kamailio handle?

used as load balancer in stateless mode, Kamailio can handle over 5000 call setups per second.

How do you integrate Kamailio with asterisk?

Asterisk 1.6 and Kamailio 3.1 Realtime Integration Tutorial

  1. IP authentication – can be enabled via define WITH_IPAUTH.
  2. TLS support – can be enabled via define WITH_TLS – TLS to UDP translation and vice-versa is done automatically by Kamailio in case you configure Asterisk on UDP.

What is a SIP server?

A SIP server, also known as a SIP Proxy, deals with all the management of SIP calls in a network and is responsible for taking requests from the user agents in order to place and terminate calls.

Is Kamailio a SBC?

An SBC ( Session Border Controller ) helps to abstract the core VoIP platform from public access and traffic. In advanced cases, transcoding, topology concealment and load balancing are also achievable via an SBC such as Kamailio.

Is Kamailio an SBC?

A typical voice core network consists of B2BUA SIP server with media proxy and media processing units / servers along with components for billing , user profile management , shared memory/ cache , transcoders , call routing logic etc .

What is Siremis?

SIREMIS is a web management interface for Kamailio (OpenSER) and SIP Router Project. Main features are: dispatcher, prefix-domain translation and least cost routing (lcr) management. access control lists (user groups) and permissions management. accounting records, missed calls and call data records view.

What is SIP configuration?

With Session Initiation Protocol (SIP), you can move your existing PBX phone system to the cloud. You can run your voice calls, video calls, and instant messaging through an internet-based VoIP phone service provider.

Is Kamailio a B2BUA?

Is Kamailio a B2BUA? No, Kamailio is a flexible SIP proxy. Many people integrate Asterisk, FreeSWITCH, SEMS, or other products with Kamailio for a B2BUA.

How to configure Kamailio in Linux?

You need to setup a configuration file in the /etc/default/ directory. This file can be found at: You need to rename the /etc/default/kamailio file to ‘kamailio’ after you’ve copied it. Then edit this file and set RUN_KAMAILIO=yes. Edit the other options as per your setup.

Does Kamailio support SIP SIMPLE presence?

SIP Communicator is written in Java, therefore very portable, apart of its large set of features that includes SIP SIMPLE presence and XCAP support. The main focus in next sections is to show how to configure Kamailio to handle SIP SIMPLE presence and XCAP for storing buddy list and presence rules.

Can Kamailio XCAP server be used with simple presence?

New open source XCAP server offered by Kamailio and SER projects can be used with their integrated SIMPLE Presence server or as stand-alone XCAP server.

Can Kamailio handle HTTP requests?

Kamailio 3.0 was able to handle HTTP, used only to process XMLRPC requests. v3.1.0 introduces a new module, xhttp, which is able to handle any kind of HTTP request. In top of it can be used another new module, xcap_server, to process XCAP specific request sent over HTTP.

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