Here's a knotty #HTML / #JavaScript problem.
Is there any way of detecting whether the user-agent is capable of placing a telephone call?
There are some proxies - detecting the OS, or seeing if it a touchscreen, or detecting the NetworkInformation.type. But those are all fairly unreliable.
Is it possible to determine if a device is capable of using <a href="tel:...."> links?
@Edent what's the use case for careing? The task of "where does tel: go" is for the users agent to decide
