Is there any open source PoC server and client software(Framework) for java to manage SIP and support RTP and RTCP with App Packet messages preferebly support TBCP?
Our project is to send and receive realtime voice and video over cell phones and manage sessions which created for participants and one of them can send his voice and images(his video) at the time and other participants can only receive his voice and video at the same time (exactly like Walkie Talkie with voice and video). i just know PoC servers can manage these conditions but i couldnt find any framework or server to handle it.
is there any idea.
I don't think there's anything like this out there. I work with VOIP and mobile devices for a living, and have never found a framework like this.
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We developed a Hotel Menu Order project in android. Now We have created the project successfully. We are using java, Jax-rs for web service, Mysql for database and Rest for communication.
Now we want to add some more features in our app. When the customer conforms their order that order should show to kitchen and admin. When we google for some example we found one way. That is Google Cloud Messaging. But this is online sevice. We can not use this service.
Because we are using in offline services. We use one centralized server in the hotel and all the devices will connect with WiFi. There is no internet connection.
In this case how to notify the user a row is updated in Database. Please let us know how to achieve this.
Via SMS, what you can do is that you can send the sms to the devices using thrid party services like twilio, on client side i.e. device end you can get the sms broadcast validate the number and the sms content, read the content and update the application DB and the UI accordingly.
Or if one device has internet then what you can do is send GCM notification to that device, and from that device you can update the other devices through wifi direct. But wifi direct has some limitation, I think using SMS is a better option.
u can use Google Cloud Messenger services, by which google provide free message service to your client. http://hmkcode.com/android-google-cloud-messaging-tutorial/ this example will help u to understand better.
I am familiar in using xmpp library,for android i'm using asmack library.In Google chat also asmack is used.i can write an application to send/receive messages using xmpp.But now i want to track google chat messages in my application.what ever the user do in google chat the same sholud be happening in my application.Suppose that user logged in google chat,in my appication also he is logged in.Sent messages /Incomming messages also should be in sync.i m able to do every thing except synchronizing outgoing sms.How to capture the packet when user is send a message from google chat into my application. ?
You should not be able to do that (unless rooted) as it would be security issue - anyone could sniff your any network activity that way. If your app sign in to the google talk server (as any other client) then you should receive copies of all the conversations, but that's it.
I am trying to develop a message app within my android app. The message will be like whatsapp and beluga. I googled it and found C2DM Android 2.2 can send the push notifications to the device. However, this is not available on Android 2.1. Anyone knows how whatsapp send the notifications for 2.1 devices?
For Android: Whatsapp is build upon C2DM and when the app opens it opens an XMPP connection to their service to deliver the messages instantly. They also might use MQTT as a protocol to minimize battery usage. That's basically it.
Edit: I learned more, Facebook uses MQTT in their messaging app. Whatsapp is build upon XMPP with their own extensions. Their server side runs on top of ejabbard (XMPP implementation in erlang). http://www.ejabberd.im/
On pre 2.1 devices WhatsApp probably keeps a connection open to their XMPP servers in the background but this is not really good for battery life.
C2DM is replaced by GCM (google cloud messaging) now . you can use it for delivering the notifications to your app . For the exchange of message one should rely on protocols like xmpp (whatsapp), mqtt(facebook messenger), mtproto (telegram) etc.
if you are looking to familiarize yourself with GCM . try out this tutorial by appsrox - Create an Instant Messaging app using Google Cloud Messaging (GCM)
they are using GCM for the message delivery as well. it won't suit for production, but its an excellent resource for people who want to develop an instant messaging android app .
I don't know what exact technology is used in whatsapp. However, if i am to implement notifications where there is no support for push notifications from the OS, i can do two things:
Poll a remote server every X seconds and check for new notifications (this is the more expensive choice).
Run a background service, maintain a connection with a remote server, which will pump me any notifications that are to be received (sort of my like my own push notification implementation).
I am now trying to do a project which is, there will be a server on windows pc and there are some clients on android devices.The point is the server one should control the android devices.For example it choose a image or video, send them to the clients and the clients play or show them.Remember the clients should be control by the server.
So could anyone tell me a proper way to do that, which protocol should i use, how do i send the files to the clients and how do the clients react? I am thinking of using java for the server and of course the client will use android application.
Thank you.
You might find Cloud to Device Messaging (c2dm) useful: http://code.google.com/android/c2dm/index.html
In essence, c2dm allows a remote server to send an Intent to an Android app. The device-side app can then respond to that intent to take the requested action. Chrome2phone works this way to open web links on a target device. http://code.google.com/p/chrometophone/
I have a website where users can send personal messages between them, now I want them to recieve the messages also on their mobile phone but without having to send them a SMS.
I am thinking about providing them with a mobile phone with internet access over GPRS or 3G, then develop a Java application that will connect to the website and retrieve the messages.
On the website I am thinking to make a webservice where the phone will login, get new messages, and also be able to answer back to messages.
Does anyone know any mobile application tutorial that will do that? Or do you recommend me where to start? I never done a java mobile application before, I only work with websites and PHP.
I also tried to use ICQ, the client is already done for java and for iphone, and I've also found a script that will send ICQ messages from PHP, but ICQ server bans you for 20 minutes when you do many reconnections, so I have to develop some kind of ICQ bot always online that will check for new messages to send from the mySQL database and then send them, one per 2-3 seconds, so the server won't ban me for flooding.
Well any advice or recommendation is welcome about how to have users connected to the website messaging system from their phones.
Thank you!
Instead of a Java Application, I would do a mobile HTML web page for the mobile devices because it will be simpler to deploy. I know Java is supposed to be WRITE ONCE RUN ANYWHERE, but with JavaME is not that simple. You will have to create special deployments for different phones, and there are phones that do not support JavaME (iPhone) at all.
With a mobile WEB SITE, the only thing your mobile phone needs is a browser. Pretty much every feature/smart phone have a browser these days.
If you insist on developing a JavaME application, you are on the right track. You can publish some WebServices on your WebSite and consume them from JavaME. Here is a tutorial on how to do that.