In Progress

Telnyx API Integration + Windows App Serve it

We are looking for expert C# .Net developer to achieve this project. Th project will divide in two parts:

1- C# .Net Class library to handle Telnyx API (TelnyxAPILib)

2- .Net Windows application in C# .NET to serve calls and SMS through TelnyxAPILib.

This app should has the following main features:-

a. Allow import/export spread sheet with names and phones in grid view (Ability to cache last

imported file).

b. After import sheet, allow user to select all or specific numbers to broadcast SMS.

c. Text area to enter message content.

d. Send message to selected phones with delivery checking.

e. Make call to specific number.

f. Ability to record voice message as save it, to broadcast it to number of phones later.

g. Validate phones before send SMS or make call (check US or CA, not null and so on).

h. It should be windows application in C# .NET.

All source code should be on Bitbucket repositories, and before code delivery you will transfer

repositories ownership to our Bitbucket account. Library and App should be in separated repositories

(use library as sub module for App)

Note: Submit your cost based flat rate and time to complete it.

Skills: .NET, ASP.NET, C# Programming, C++ Programming, Software Architecture

See more: An Example of the app: if you need a house keeper, you can find the person in the app. We will use background check such as chec, web api for windows app, exchange api windows app, telnyx sms pricing, telnyx blog, telnyx voip, telnyx sip, telnyx support, telnyx portal, telnyx reviews, telnyx mms, php, android, .net, mvc, api, windows app exchange api, api keyboard mouse app windows 32bit, facebook app api integration, background check api integration

About the Employer:
( 0 reviews ) United States

Project ID: #17163590

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Hi I am a technical evangelist, developer and can do this task for you. I have more than 12 years of experience in software development and am a microsoft certified professional.I have strong work experience in Reac More

$800 USD in 25 days
(39 Reviews)

17 freelancers are bidding on average $699 for this job


Are you aware that Telnyx API requests are rate limited to 100k requests every 15 minutes, per IP address? Telnyx HTTP endpoints are RESTful, and consume and return JSON. All HTTP endpoints except [login to view URL] More

$555 USD in 10 days
(139 Reviews)

HI, I will finish it in 15 days period of time, you will have neat clean application and with proper coding standard. I will use the bitbucket repository that you provide. 8+ year exp. in c# programming and a More

$1500 USD in 15 days
(179 Reviews)
$555 USD in 10 days
(23 Reviews)

hi. I have 5+ years of experience in C# development. I have already built API integration solutions and data import/export using APIs. here are a couple of my past projects: ---( More

$750 USD in 15 days
(71 Reviews)

hi,dear. We understand your proposals and I am very interested in this job - 'Telnyx API Integration + Windows App Serve it'. We are senior software developers and I am able to perform this task with my developers team More

$555 USD in 4 days
(15 Reviews)

I am confident that i can do this project. Would you please message me so i can ask some directed questions to gather all the details for this project before project's initiation? Looking forward to show you my skill More

$555 USD in 10 days
(5 Reviews)

Hi, I have gone through your requirements and I can definitely help you with the required development. I have completed more than 400 projects for various clients. Check Portfolio and reviews for some of the past wo More

$750 USD in 15 days
(16 Reviews)

Hi, I have 13 years experience in C# desktop application development. I can complete the project in Winform or in WPF. I have studied the requirement properly and agree to all the terms. I also offer 30 days bug recti More

$600 USD in 10 days
(27 Reviews)

Hello, As you want import/export sheet, feature to broadcast, call and message gateway, typing area for alphabets and numeric digits and so on. We can develop this for windows using .Net c# only Kindly let us know in More

$500 USD in 20 days
(10 Reviews)

Hi ! As I have seen your above explained requirements for yours projects. Hello There, Greetings for the day ! Our technical expertise IVR, includes cross-platform proficiency (Windows, Unix, Linux and VxWorks More

$277 USD in 15 days
(11 Reviews)

Hi. My name is Oleg and I am senior C#/.NET software developer from Ukraine. Please contact to discuss any other details regarding the project. You need .NET wrapper that covers all possible endpoints of Telnyx http ap More

$750 USD in 21 days
(3 Reviews)

Hello, your requirements are pretty clear. I can write this program for you all in c# with easy to read maintainable code. The only thing missing is how do you want your information stored, a local database or an azur More

$1200 USD in 20 days
(3 Reviews)

Surely, I've given expertise. I'm Microsoft Certified Professional, Senior Software Engineer and Microsoft Certified Trainer with over five Years of Experience. Skills: ASP.NET Core (MVC 6), MVC 5, WCF, N-Tier More

$555 USD in 10 days
(2 Reviews)

Hi there, >> A gentle followup regarding the previous shared proposal. Possess 6+ years of experience with expert skills in | SQL Azure | C# | etc. + We religiously use Bitbucket. + Confident to deliver More

$833 USD in 10 days
(3 Reviews)
$600 USD in 10 days
(0 Reviews)

i am full fledged .net developer works for major mnc experience of 6.7 years worked for microsoft and microsoft certified professional. Relevant Skills and Experience .net biztalk wcf

$555 USD in 10 days
(0 Reviews)