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Android / IOS SIP Dialler Phone SIP-to-GSM

£250-750 GBP

Closed
Posted almost 6 years ago

£250-750 GBP

Paid on delivery
I need an application that runs on Android phones (4.0 or above) and can send/receive calls through SIP (Can use any sip stack like sipdroid) and forward it to the GSM network. The application should then forward the audio and convert from SIP to GSM and vice versa. Full description below. Please review and message me with considerations. If any requirements are unable to be met, please let me know before we make a deal. Summary:- The goal of this project is to develop an Android application that can send calls through SIP and forward them to the GSM network AND receive calls from GSM and forward to SIP. The application should then forward the audio and convert from VoIP to GSM and vice versa. The app also needs to be able to recognise DTMF tones when calls come from SIP. General Deliveries - The application working in APK format - Full source code with detailed comments - Documentation - Detailed manual for compiling and generating the application from source - A SIP client running on phone that connects to the SIP server via GSM data network. - App needs to be self-running without any human needing to respond - App must store and recognise each handset's SIM number Features - Able to run on Android 4.0 and up. - Route call from SIP to GSM (preconfigured SIP client) automatically without human response - Route call from GSM to SIP (preconfigured SIP client) automatically without human response - No manual dialpad for human to dial out. - SIP User ID will be actual SIM number that will be preconfigured - Convert audio from/to SIP and GSM networks - Pass DTMF tone - Record all inbound and outbound calls on database - simple insert statement. - Recognise SIM number and apply to call records - Obtain GSM SIM balance update via USSD. Application Configurations: - Enable or disable the app - Enable to receive calls only on wifi or GSM data networks - Enable to route calls from GSM to SIP (SIP address is pre-configured) - Enable to route calls from SIP to GSM (SIP address is pre-configured) - Must run on background - Read inbound SMS and credit balance update USSD messages - Must be VERY lightweight to run on VERY low / small memory devices - Configure SIP Accounts. Sip Requirements: - Register on Sip Proxy/Gateway - Receive call authenticated by IP, user/pass or no authentication. - Make calls with or without authentication - Forward DTMF digits using RFC2833 or inband - Use codec G711 and GSM - Be able to use codec G729 - Receive through GSM one 1 simultaneous call and rout it to a predefined SIP client Skills required: Android, Asterisk PBX, VoIP An standard SIP client running on a seperate android phone will have to connect to the SIP server that was developed on the other android phone via wifi and an incoming and outgoing call would have to to be demonstrated. Following additional data will be provided: - Country network dial codes and USSD short code to request balance from GSM network (as each network have their own USSD short code). - Pre-configured SIP details
Project ID: 17012190

About the project

18 proposals
Remote project
Active 6 yrs ago

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18 freelancers are bidding on average £560 GBP for this job
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How are you? I am an experienced mobile developer. I am good at asterisk, too. Please have a look at my profile: https://www.freelancer.com/u/octopus823 I assure high quality of your app. Please contact me and tell about your project details. Best regards.
£555 GBP in 10 days
5.0 (307 reviews)
9.4
9.4
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Hi there, I hope you are doing well :) I have strong experienced and skills in developing apps, Your idea is to develop an "BASIC RUNNING APP" like user login, store location, Menu activity and accelerometer and i have been done the similar kind of projects before so as per my previous work experienced i am 100% confident to work on your project and deliver I have 7 years of experienced in development with the domain Android, iPhone, PHP, MySQL, JSON, Restful API, IONIC, UI/UX. We have enough peoples to complete this job on time line and i am ready to start now as per your need and i will excecute your project in stages. Reasonable to start in stages : Designing , Prototype building, Restful API, Database Setup, API integration, Back-end development, Testing and Beta version launching. If you have any questions, please don’t hesitate to get in touch. I hope to work with you. Thanks and Regards
£500 GBP in 10 days
4.8 (201 reviews)
8.1
8.1
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I am a full time developer and have high skills in mobile app develop so I can complete this project. My price and time is negotiable. Let's discuss details via chat. I'll provide best service. My Skills: Software Engineering. Android/IOS app design Android/IOS native programming by Java/Swift/Objective C programming Hybrid programming by AngularJS/ReactJS/Ionic/Cordova
£555 GBP in 10 days
5.0 (315 reviews)
7.9
7.9
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Hi. I have 7+ years of experience in Mobile (iOS/Android) app development and 6+ year Exp in Web development(PHP,Mageto .NET, JAVA,HTML). I can use Native/Xamarin/Ionic/PhoneGap for mobile development. Can we discuss Requirement in Detail ?
£600 GBP in 10 days
5.0 (97 reviews)
7.7
7.7
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Hello. My name is meishan. I’ve read your brief and can see that you’d like to build a mobile app. I have 6 years experience developing mobile app. I am highly qualified for this project and would love to speak with you further about taking this project on. If you're interested in top quality work and communication please read on! You can feel free to check out my portfolio available through my freelancer profile. My portfolio is very in depth and shows you exactly the type of quality work I can put together for you. Keep in mind I have a wide array of skills and I can help you in any of the following areas: mobile native app development, hybrid app development with the ionic framework, react native app development. I'd love to chat a bit about your project and see where you stand on it. I have very interesting with your project. I have developed much mobile game & app for a long time. Uber taxi app, food delivery app, Chatting app, google tracking app, etc... please contact me. Please feel free to shoot me a message and let me know if you have any questions. thanks.
£555 GBP in 10 days
4.5 (30 reviews)
6.7
6.7
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Our developers have 5+ years of hands-on in SIP and VoIP services. Followed by both free and paid CODECS which are enabled in Linphone side. Do you have SIP server? can you provide details of your sip server INITIATE a chat for a quick conversation. we will discuss, share our experience. Thanks Relevant Skills and Experience Android, Java, Mobile App Development, VoIP Asterisk PBX GCM FCM
£833 GBP in 10 days
5.0 (11 reviews)
6.0
6.0
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Hi Sir, I have good experience in SIP development and developing VOIP dialer. As i reviewed your requirement it's looking good to me and i would like to discuss further with you. Thanks,
£516 GBP in 10 days
4.3 (96 reviews)
6.5
6.5
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Hey I can provide you with an application that runs on Android phones (4.0 or above) I am experienced freelancer you can award me this project, do let me know if you are interested . hoping to work with you soon :)
£555 GBP in 10 days
0.0 (1 review)
0.0
0.0
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I will developed your android app according to your requirement. Phone number : +91 9871190569 Skype id : sandeep-rawat1
£388 GBP in 10 days
0.0 (0 reviews)
0.0
0.0

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Member since May 21, 2018

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