Here are some simple steps that can help you resolve the issue with the Mobile SIP Servlet Samples.
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For those new to SIP, the product can be intimidating knowing where to start. One of the special challenges is figuring out which devices to use and where to find the right libraries. This guide will probably show you how to get up to speed with basic SIP functions. Included is a sample Sip servlet with basic SIP methods that allows you to register a SIP phone and make an actual call between two SIP phones and thus understand some of the output of a SIP program.
Much of what is explained below is based on the Mobicent Sip servlets, which use the Java development language.
There are many resources on the Internet explaining how to learn Java. This tutorial will not teach anyone the basics of Java. This should help you familiarize yourself with SIP with Java Servlets and Mobicents Sip.
If you need professional advice to start a SIP project beyond the scope of your guide, you can contact us here
- Download and install MAVEN on your system.
- Download the latest Mobicents Sip servlet HERE, follow the installation instructions HERE.
- For developers: download and install Get Eclipse Java EE HERE.
- Download the HelloSipWorld example servlet HERE.
STEP 1. Set Up Your Business Environment
You do not need to use Eclipse during the ordering process to use this tutorial. However, it can be useful for quickly modifying and deploying servlets.
Having almost loaded the above programs, we complete our tasks:
- Watch the eclipse
- go to file -> new -> other
- Scroll down and select the Server-> Server option on the Select Wizard screen as shown below.
- Click Next.
- In the Define New Server window, JBoss is in the Remote Computer Type selection.
- select JBoss 7.1 and click Next.
- To look in the JBoss run window at the root directory where you installed Mobicents Sip Server.
- In the screenshot below, the root directory is definitely mss-2.0.0.FINAL-jboss-as-7.1.2.Final
- Right-click the server and select start.
- If it started correctly, it will look like the screenshot below. The console also reports if it started correctly.
You can even sStart the server from the command path by going to the $ JBOSS_HOME / bin directory of the website. $ JBOSS_HOME represents the root site of the MSS server.
- sudo ./standalone.sh -c standalone-sip.xml
STEP 2. Import The Mobicents Sip Sample Project Into Eclipse
You will need to unpack the HelloSipWorld example servlet that you already downloaded here. To
- I would say File-> Import-> Maven-> Existing Maven Project
- Click Next
- Look at the root of the my-sipapp submit page, which contains the HelloSipWorld servlet.
- eclipse can select the pom.xml file in the new root directory.
- click Finish.
menu
After completing the above step, the servlet should appear in the project explorer as shown in the screenshot below
STEP & More – Basic SIP Java Methods
In this tutorial, we have tried to use only the Java Sip methods that are necessary to facilitate your in-depth understanding of the basics of SIP. In Eclipse under my-sipapp-Servlet
- If the person provides the Mobicents servlet, the init () method is called.
- If you allow a call from one SIP mobile phone to another SIP phone, each method is called doInvite ().
- The doResponse () product handles all responses from the user agent during the SIP communication.
- The doRegister () method handles user agents (Sip registration phones) on the Sip server or proxy server.
- The doBye () component is triggered if the call may have been interrupted.
The above explanation is simplified if you need an overview of the functions of these functions.
STEP Docs – Mobicents-dar.properties File Configuration
Mobicent’s Sip Host comes with a number of servlets that provide similar functionality. So you need to tell the Sip server and call it servlet when you reply to sip. The configuration should be done in the $ JBOSS_HOME / standalone / configuration / dars / mobicents-dar.properties file.
Change the content associated with the file to point to its own HelloSipWorld servlet as shown below:
INVITE: (“com.mycompany.app.HelloSipWorldApplication”, “DAR: From”, “ORIGINATING”, “”, “NO_ROUTE”, “0”)
SUBSCRIBE: (“com.mycompany.app.HelloSipWorldApplication”, “DAR: From”, “ORIGINATING”, “”, “NO_ROUTE”, “0”)
OPTIONS: (“com.mycompany.app.HelloSipWorldApplication”, “DAR: From”, “ORIGINANT”, “”, “0”)
Note
You have to restart Mobicents “no_route” to changeiya entered into force. $ JBOSS_HOME is actually the root directory where you download and unpack Mobicents. This is how the server normally starts, and if it is not already running
- $ JBOSS_HOME / bin /
- sudo ./standalone.sh -c standalone-sip.xml
STEP 5 – Provide My-sipapp.war
To test the HelloSipWorld servlet, you must provide the my-sipapp.war file. It can be found at my-sipapp / target / my-sipapp.war
If you make any changes so that you can edit the HelloSipWorld.java file with any other text editor, you may need to do a new expert install and place the my-sipapp.war statement in the $ JBOSS_HOME directory. copy /standalone/deployments-folder. for the changes to take effect. 6
Step – Test The HelloSipWorld Servlet
Although you can use the Eclipse IDE, using the command as a console makes testing and debugging easier. Be sure to launch Mobicents Server from anywhere on the command line as follows:
- $ JBOSS_HOME / bin /
- sudo ./standalone.sh -c standalone-sip.xml
If your server starts up correctly, you will probably see the console info.mation similar to the one below
[warning type = “success”] INFORMATION [org.jboss.as] (controller boot stream) JBAS015874: JBoss AS 7.1.2. Final “Sterops” started at 9833 ms – 139 out of 225 service experts (85 services are passive , otherwise on request). [/ Alert]
Make a phone call using a SIP phone. In this example, we are using Linphone. When you start Linphone and configure it to use the proxy at 127.0.0.1:5080, it might automatically try to register. DoRegister () This method will respond and register the full phone URI in each temp list.
The screenshot below shows some sort of agent, a user who literally successfully registered a SIP phone using the doRegister () method
To make a call, you may need to register two SIP phones. If male and female SIP phones are not accredited, you will receive the message “USER NOT FOUND”.
To start a series of SIP phone instances, in this case Linphone,
When you receive a call from one SIP phone or from one phone to another, doInvite ()is constantly activated and sold with the challenge. You will notice that the GUEST in the console is different from the output below.
p>
To:
Via: SIP / 2.0 / UDP 192.168.0.105:5062;rport=5062;branche=z9hG4bK991800391;received=127.0.0.1
CSeq: 20 INVITATIONS
Phone number: 1190782799
From:
Contact:
Content length: 0
If you end the call and then hang up, the phone call will most likely send a BYE and this was always handled by the doBYE () method. For a while, you will also see console output similar to the one shown below:
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INFO [com.mycompany.app.HelloSipWorld] (Mobicents-SIP-Servlets-UDPMessageChannelThread-9) HelloSipWorld screens got BYE …
23: 36: 32 806 INFORMATION [gov.nist.javax.sip.stack.SIPTransactionStack] (Mobicents-SIP-Servlets-UDPMessageChannelThread-9)
to = â € 127.0.0.1:5062â € ³
Hour = â € 1363152992804â € ³
isSender = “true”
TransactionId = â € z9hg4bk872892839â € ³
callId = â € 550252073â € ³
firstLine = “SIP / 2.0 two OK”
>
To:
Via: SIP / 2.0 / UDP 192.168.0.105:5062;rport=5062;branche=z9hG4bK872892839;received=127.0.0.1
CSeq: 21 BYE
Phone number: 550252073
From:
Content length: 0
Check the HelloSipWorld.java file to see how the logger.info () function is currently being used. This is a better way to write information to a method than using the standard Java results command. Another advantage of the logger.info () function is that the information is usually stored in a log file, which you can usually refer to later for troubleshooting.
SIP offers more than what is presented here. Having said that, this is a good place to start.
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