Hi there, Thanks for reaching out. Please check out our [url=https://help.bungie.net/hc/en-us/articles/360049196431-Destiny-Audio-Guide]Audio Guide[/url] to ensure the in-game voice chat settings as well as your system settings are optimized for Destiny 2. If you have any parental controls set up for your system outside Destiny 2, be sure to configure those to allow the use of voice chat as well. It's also possible the output channel for Destiny 2 Fireteam chat is not configured properly. If you're playing on PC, we recommend having a look at [url=https://www.bungie.net/en/Forums/Post/259603266?page=0]this thread[/url] to troubleshoot the issue, as users here offer different solutions for similar problems.