Go to https://www.skypepreview.com/ to sign up for Skype Meeting Broadcast, PSTN Conferencing (US only at this time) and Cloud PBX with PSTN Calling (US only at this time too).
- Skype Meeting Broadcast will allow you to host live meeting with up to 10 000 attendees with Yammer integration to allow dialog during the broadcast
- PSTN Conferencing will allow you to host live meeting with Skype for Business Online and invite your participant to dial in to join the conference. As prerequisites, you must have an Office 365 Enterprise plan, or Skype for Business Online Plan 2 or 3 and being hosted in the US
- Cloud PBX will deliver iPBX features based on Office 365/Skype for Business Online, meaning you will be able to make and receive traditional phone calls directly with your Skype for Business client without the pain of setting up telephony integration On Premises and integration with Online. As prerequisites you must have an Office 365 Enterprise plan or a Skype for Business Online Plan 2 or 3 and being hosted in the US