Amazon Connect - Check Connectivity Tool
[US-East-1]  ..... waiting
[US-West-2]  ..... waiting
[Frankfurt]  ..... waiting
[Sydney]  ..... waiting
[Tokyo]  ..... waiting
[Singapore]  ..... waiting
[London]  ..... waiting
[US-East-1]  ..... waiting
[US-West-2]  ..... waiting
[Frankfurt]  ..... waiting
[Sydney]  ..... waiting
[Tokyo]  ..... waiting
[Singapore]  ..... waiting
[London]  ..... waiting
 

DetectRTC (source code)