Welcome to the RingCentral Community

Make sure to review our Terms of Use and Community Guidelines.

Please note the community is currently under maintenance and is read-only.

Home » Developers

ASP.Net- C# sample code to FAX PDF documents

Tags: sdk

Aug 13, 2018 at 9:23pm • 2 replies • 0 likes

sarang-farhangi

I am new to FAX sending using RingCentral. I got the above error message while working with the code.

I added the below line to web config.

still, the error exists.

Do we need to replace the clientid and clientsecret id with our registered username and password?

Please help me to proceed with it.

2 Answers

sarang-farhangi answered on Aug 14, 2018 at 2:56am

we are using 4.5.2 framework . Tried the code in this link but the same error is still there

Tyler Liu answered on Aug 13, 2018 at 10:42pm

Please check https://github.com/dotnet/standard/issues/542

I was able to fix a similar issue by following the instructions there.

A new Community is coming to RingCentral!

Posts are currently read-only as we transition into our new platform.

We thank you for your patience
during this downtime.

Try Workflow Builder

Did you know you can easily automate tasks like responding to SMS, team messages, and more? Plus it's included with RingCentral Video and RingEX plans!

Try RingCentral Workflow Builder

PRODUCTS
RingEX
Message
Video
Phone

OPEN ECOSYSTEM
Developer Platform
APIs
Integrated Apps
App Gallery
Developer support
Games and rewards

RESOURCES
Resource center
Blog
Product Releases
Accessibility

QUICK LINKS
App Download
RingCentral App login
Admin Portal Login
Contact Sales