In pstn conferencing please add to the location or subject field smartphone friendly dial in..
In pstn conferencing add smartphone friendly dial in numbers i.e. +1 (312) 757-2503,,,7211234#
We are waiting for this feature for a while now!!!
This is the same as this suggestion: https://www.skypefeedback.com/forums/299910--recently-released/suggestions/12292059-add-a-string-to-the-location-for-dial-in-for-cus. But they add this suggestion: "For example 123-456-7890 p12345678# will give you a clickable link on most mobile platforms that will dial the number, pause then send the conference id DTMF." That format worked on iOS and Windows Mobile 10, whereas the +1 (area code) number,,,conferenceID# format did not.
Kathy Crowley commented
This idea is essential to usability!