An SRV record is a type of DNS record that can be added under the Manage DNS section of your hosting control panel.
We do currently have an auto-configure DNS tool which will add the required records for you. To use this simply click the corresponding option on the right-hand side of the screen.
If you prefer to add this manually the records you need are the following:
Select SRV from the Type dropdown.
In the Name field, type: _sip._tls
In the Data field, type: sipdir.online.lync.com
Enter 100 for Priority.
For the second record, select Click to add another record. A new row will appear.
Select SRV from the Type dropdown.
In the Name field, type: _sipfederationtls._tcp
In the Data field, type: sipfed.online.lync.com
Enter 100 for Priority.
Remember to save the records by clicking 'Update DNS'.
The above SRV records are correct as of 14/09/2020, but we recommend checking your Microsoft account for any changes.