I need an application that can receive a call 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.
The app should be able to run on cheap devices (+-100$).
I was thinking on a way to emulate a headset and set it as default, so just need to initiate a call on gsm network using core android functions and audio will be automatically forwarded.
Codecs: Minimum g711, desired g729.
Full description below. Please review and message me with considerations. If any requirements are unable to be met, please let me know before we make a deal.
o The goal of this project is to develop and Android application that can send calls through SIP and forward them to the GSM network AND receive calls from GSM and forward to SIP. The application should then forward the audio and convert from SIP to GSM and vice versa.
o The app should be able to run on cheap devices (+-100$).
o The application working in APK format
o Full source code
o Simple manual for compiling and generating the application from source
o The project will be closed source and must be able to be sold on Google Play, so must NOT use an open licensing model that prohibits closed source code.
o Route call from SIP to GSM
o Route call from GSM to SIP
o Convert audio from/to SIP and GSM networks
o Can have 2 or more GSM chips (Only one call simultaneous but may choose the chip)
o Must be able to run on cheap devices like Samsung galaxy Y or Chinese devices like this ([login to view URL]).
o Able to run on Android 2.2 and up.
o Enable or disable the app
o Enable to receive calls only on wifi or all networks
o Enable to route calls from GSM to SIP
o Choose a fixed number to send the call
o Enable to route calls from SIP to GSM
o Route the call to number on INVITE field or a custom field Or route the call to a fixed number defined by user
o Must run on background
o Must be very lightweight to run on small memory devices
o Configure SIP Accounts
o Create a mini dialplan to choose which chip to use based on techprefix
o Register on Sip Proxy/Gateway
o Receive call authenticated by IP, user/pass or no authentication.
o Make calls with or without authentication
o Forward DTMF digits using RFC2833 or inband
o Use codec G711 and GSM
o Be able to use codec G729
o Create a mini dialplan to choose which chip to use based on techprefix, per SIP Account
o Hability to register more than 1 SIP account (but receive just 1 simultaneous call)
o Be able to store a CSV with all calls made
26 freelance font une offre moyenne de $2681 pour ce travail
Hiya! I am so interested in your “SIP to GSM voice call android app” project. Please follow this link to check my previous experience. https://www.freelancer.com/u/Yugene90 I have read initial brief & interes Plus
Hi there, I have checked the details I have great experience with Android, Asterisk PBX, Java, Mobile App Development, VoIP. Please start the chat so we can discuss this job more in detail. Thanks Our Website: www.z Plus
Hi, I have good knowledge of SIP stack. I have 10 years of working experience in networking field. So I along with my team can accomplish this task. We can discuss further in chat.
I have good experience in Mobile and Web app development field.. I have developed lots of mobile apps and website , game etc for about 8 years.. So I think we can discuss about your project in detial .. Please Plus
Dear Sir, Greeting from my side, MxiCoders is willing to work with you in SIP to GSM voice call android app project. Yes, MxiCoders will able to do your project within proper timeline and with the high quality of Plus
You will get feeling that you met an OASIS!!! I looked over your project and am excited to send over a proposal. Please check my recent apps. -QuickExchanger(Currency Exchange app) [login to view URL] Plus
hi there, dont waste your time , its not possible for now to do this. be free to ask me any question. bye. Pavel.
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Hello sir. Thanks for posting this project. I am a senior mobile app developer who has years of experiences in this area. Please hire me so that I can start right now. Thanks again.
Hello Sir, Hope you are doing well. I have read your post & understood that you are looking for an experienced & dedicated developer who is able to develop an Android App that can receive GSM voice calls through SIP. Plus
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