Following a first launch of this Skype for Business PSTN Conferencing some months ago, 18 new countries – Austria, Brazil, Bulgaria, Croatia, Czech Republic, Estonia, Greece, Hong Kong, Ireland, Japan, Luxembourg, Poland, Portugal, Romania, Singapore, Slovakia, Slovenia, and South Korea – will get the capabilities of using the cloud service to host conferencing with dial-in numbers starting March 1st, 2016.

To know more about Skype for Business PSTN Conferencing take a look at https://support.office.com/en-us/article/Dial-in-conferencing-in-Office-365-90d51188-0ba9-4dc4-bd6c-ae11dd1f8551