Yes. These settings are most known as QoS (Quality of Service). Keep in mind that even if you've a good bandwidth, the stability of your internet network is important too!
For the best call quality on Aircall, we recommend the following settings on your router:
If you are on Wifi, feel free to activate WMM. If possible, please also disable SIP / ALG on your router.
If your are not able to configure QoS settings on your router, we strongly recommend you this Asus one (if you're between 5 and 25 in your office). Feel free to get back to us by email at firstname.lastname@example.org if you need more help on this setup.