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SIP server

$750-1500 USD

Closed
Posted about 9 years ago

$750-1500 USD

Paid on delivery
I would like to know if you can develop an application to work as SIP server on Android phone, so we can terminate the call from PBX to the mobile application which will use the SIM card to initiate the call, in other words turn the mobile to GSM gateway so we can use the phone as outgoing trunk for the company PBX
Project ID: 7194035

About the project

20 proposals
Remote project
Active 9 yrs ago

Looking to make some money?

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20 freelancers are bidding on average $1,991 USD for this job
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Dear sir. To get me in here, will be the success of your business and life in the world. The OASIS of Desert will not be good result than you got me in here. I am a high quality and top mobile developer. I have rich experiences in developing mobile app for over 5 years. Before felling in love with mobile apps, I had worked extensively with Java, Objective C, Eclipse, XCode, C/C++ to have a strong grip on OOP and design patterns. Worked in domestic/global app development teams during my last 5 years, gained rich experience and knowledge in mobile app development. This project is one of my excellent skills and full experiences. I will provide high quality result and fast service within your budget, surely. My working time and communication will be flexible to meet your requirement. Let's go with me! Best regards!
$1,184 USD in 20 days
5.0 (37 reviews)
8.0
8.0
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Hello Thanks for your good project. I have seen your description carefully. There is no any risk for me at your project. Please check my work history. I have developed a lot of iPhone/Android apps and published to AppStore and GoogleStore. I have rich experiences in REST API, SOAP API, JSON/XML, PHP & MySQL Web Service API, GPS and Geolocation API, Facebook API, Twitter API, Foursquare API, MapKit, Payment Gateway APIs, eCommerce platforms. My ultimate goal is to build a long lasting relationship with my clients. I am looking forward to hear something positive from you and working on this project. If you hire me, you will get more benefits than you expected from the other freelancers. I'm ready to start your work and we can discuss your requirements via Voice conversation. please send me a private message to discuss details. Thanks.
$1,578 USD in 20 days
5.0 (38 reviews)
7.8
7.8
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A proposal has not yet been provided
$1,184 USD in 20 days
4.7 (47 reviews)
7.9
7.9
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A proposal has not yet been provided
$1,250 USD in 20 days
4.9 (19 reviews)
6.3
6.3
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Dear sir I am a passionate mobile developer with 5+ years rich experience. Worked in domestic/global app development teams during my last 5 years, gained rich experience and knowledge in mobile app development. My strong skills are + iOS 7,8 development(iPhone & iPad) + Swift; + Android 2.3 - 4.2 development; + GPS, Google Map, Location Tracking + Front end and Back end for mobile services on PHP, .Net, Parse; + Payment Gateway(Stripe, Paypal, Braintree) + XML, SOAP, RSS Feed + Social Networking (Facebook, Twitter, LinkedIn) + Github I can provide quick & quality result within your budget. My communication and working time will be flexible to meet your requirement. I will do my best in order to realize your ideas into life. Regards.
$842 USD in 20 days
4.7 (27 reviews)
6.8
6.8
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Hi, Whats up. I am not going to bore you with some repeated scripts that all freelancers use. I am trying to get to a point. If i write some stuffs here. I would like to know about some of your preferences. I have a good suggestions too on your project to make it much more BETTER. Their are also category slabs for quality assurance and add on services. We are specialised in Almost all MOBILE APPS and GAMES technologies. Plus i may say yes to OLD Is GOLD - Web development and software development services too. I may say that we were one of the nominees in webby awards last year and we are hoping to be on top 10 this year. Just PM me for more details and i assure you that you can trust me as a good partner. Eagerly waiting for your reply. Regards, Offenders Techno. Your reliable Partner.
$1,855 USD in 20 days
4.8 (19 reviews)
5.6
5.6
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https://www.freelancer.com/jobs/Graphic-Design/Build-Website-7194248/?#placebidhttps://www.freelancer.com/jobs/Graphic-Design/Build-Website-7194248/?#placebidhttps://www.freelancer.com/jobs/Graphic-Design/Build-Website-7194248/?#placebidhttps://www.freelancer.com/jobs/Graphic-Design/Build-Website-7194248/?#placebid
$1,250 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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Dear Sir/ Madam, My name is Henry from PHAMTECH Co. My team is interested in this project as it is exactly within our scope of expertise: We are an 8-year experienced web/ app design and programming group. We are located in Hochiminh city, Vietnam – where most of the high quality software in the world is being produced. I understand that you might just look for a low cost product now. With your listed budget and the kind of requirements, we can only expect some quick work probably from part-time freelancers. It may serve well as a demo purpose. However, if you are really serious about software and determined to have a genuine piece which can serve several hundreds OR thousands of users concurrently, having strong codebase and smart UI with high expandability, or you simply need a professional IT team to back and run your app behind your business, please consider hiring PHAMTECH. Walmart’s Mobile, Toyota Asia, Verizon Wireless and IKEA are among our featured long term partners. You could always visit our website PHAMTECH to learn more about the works and the happy clients we're behind. We also offer 3-months free support after handover, and then charge a small fee of $15/ hour for extra works. Best wishes, Henry.
$2,444 USD in 60 days
0.0 (0 reviews)
0.0
0.0
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Need more details and freeze the scope of work before concluding cost estimate: 1. Will only one call be placed at a time? 2. Does SIP server need to support all SIP messages or only call specific messages? 3. Is mobile application expected to stream audio using VoIP or is is only meant to support SIP stack?
$2,000 USD in 20 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of EGYPT
RAK, Egypt
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Member since Dec 16, 2011

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