Category Archives: SIP servers

Sip server Brekeke

We used Brekeke SIP server to run our SIP applications . Although there are newer versions of Brekeke SIP server out now . More awesome than before , we prefer using the old one for the sake of not messing with legacy SIP applications . The official site for brekeke is – .

A general architecture of Brekeke SIP server is . brekeke

Here are the steps of installing and configuring a Brekeke SIP server .

Step 1: Download the Server form and run the setup file .





brekek2 brekek3 brekek6

brekeke4 brekeke5 brekeke7  brekeke9

Step 2: It is always good to give a look to README file . brekeke11

Step 3: Run the local implementation of SIP server at localhost or at port 8080brekeke12

Step 4: Important is to get the license which will help us activate the SIP server . One can obtain a free license from

Step 5 : Once the license is activates , we can goto the console screen after loggin with default username and password sa . brekeke13

Step 6 : Once we are at console , we could add/ delete / modify parameters like port , start/shutdown status etc . brekeke14 brekeke14_001Step 7 : Once the server is all setup , just add the IP and port of SIP server to SIP clients server filed . Now all the SIP request and response will be catered by this SIP Server


This post describes the installation , setup and configuration of Office SIP server to provide a registrar to our SIP based WebRTC application .

1. Get office SIP from this website


2. Downloaded office sip executable on windows looks like this . double click on it to start installation .


3.Installation screen appears as follows


4. Terms and conditions


5. Destination folder for installation


6. Installing


7. Validating install


8. Installation completed


9. Launch icon on dekstop


10 . Office SIP web login screen


11. create account ( also known as realm or domain ) for users to register in their SIP and webrtc sip agents


12. Fill in account details for every account added to officeSIP


13. add users that will be registering to officeSIP server


14.Office SIP settings file can be modified for changing server parameters like ip and port


15 . Office SIP can now be used by sip agents like softphones , webRTC pages , etc to register with OfficeSIP server

BEA Weblogic SIP server

Bea server is a old SIP servlet container ie application server which is used to embed control logic in a program . It is supported on jdk1.5 hence the system’s environment variables must match . Otherwise in later stages deploying applications throw class version error .

1. Install Bea Weblogic

2. Follow the Installation steps

Make domain

3. Goto the installation directory . Usually C:/bea/user_projects/mydomain/ .

click on startweblogic.cmd in windows. In case the system is linux run script

4. Open Web console on url : Enter username password

default username password weblogic , weblogic .

It can also be customized for example my username and password are altanai , tcs@1234

5.  Make Converged SIP Servlet Application in any editor such as notepad , edit+ etc .

The project structure looks like

Call screening

The SIP servlet are put side directory structure of src

For example : sample application for Call screening

package com.altanai.voice;
import javax.servlet.*;
import javax.servlet.sip.*;
import javax.servlet.sip.Proxy;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.*;
public class CallScreening extends SipServlet
private static SipFactory factory;
private static SipApplicationSession sas;
private static Proxy proxy;
public void init(ServletConfig config) throws ServletException
System.out.println(“Call screening SIP servlet initiated”);
protected void doInvite(SipServletRequest req) throws java.lang.IllegalArgumentException,java.lang.IllegalStateException,javax.servlet.ServletException,
System.out.println(“Received an Invite Request”);
System.out.println(“User is blocked”);
System.out.println(“User is not blocked”);

6. Build it with ant . For this go inside the application folder and run ant. Output will either be “failed to build “ or “build successfully” .

The ant  command generates the war file from SIP servlet Web application .

7. Incase of successful build . Add the application to Weblogic web console install section and activate it .

I will demonstrate this process in step by step manner . First  click on “ Lock and Edit “ Button on the left panel . Then goto Install button in the centre area and browser to the location of application war or sar we have build through ant ,

8. We can delete an application in exactly the same way . click on “ Lock and Edit “ Button on the left panel . Then goto the delete button after selecting the radio button alongside the application we want to delete.

8. For enhanced application building we can also refer to sample provided along with bea weblogic . file:///C:/bea/sipserver30/samples/sipserver/examples/src/index.html

Mobicents SIP server platform

The Mobicent server bears 50% resemblance to Rhino TAS .
So far , I have successfully done the following

1. installed the Mobicent platform on Linux machine
2. set up the environment to build and deploy the applications .
3. Ran simple sip b2bua call using sipp .

Attached are the screen shots of the same .

1. User agent client (UAC) Dialog
2. User agent server (UAS) Dialog
3. Mobicent slee management console
4. Joboss status console
5. Admin console depicting applications installed .