Managing sound and video settings during Teams meetings and calls for optimal communication
Hello,
Great, so now we know that you have a Business Standard License. In order to be able to dial clients in your Teams Meeting, you need to have E5 license (for audio conferencing) or an E1 / E3 license (for a pay-per-minute basis as an add-on). These licenses differ from your current one.
These are the different types of Microsoft Office 365:
• Microsoft 365 Apps for business
• Microsoft 365 Apps for enterprise
• Microsoft 365 Business Standard
• Microsoft 365 Business Premium
• Microsoft 365 A3
• Microsoft 365 A5
• Microsoft 365 E3
• Microsoft 365 E5
• Office 365 A1 Plus
• Office 365 A3
• Office 365 A5
• Office 365 E3
• Office 365 E5
So, your company has to upgrade to Microsoft 365 E3 or E5 in order to be able to dial clients who are not from your company.
I hope this helps clarify and please let me know if I could be of further assistance. Have a great day!