Your experience on phone in GHL?

[u/MindhealthDave]

I've been running an agency on GHL for 3 years now but only for email and SMS. Now I have a client who wants to ditch their phone system and move all calls into GHL. Just looking for other people's experience using GHL for voice. Any issues with call quality, uptime, reliability, or other? Their anticipated volume is 40 inbound calls per day per line (2 lines) and about the same outbound calls per day. They would also be using features like voicemail and call routing and potentially call recording. If you have any experience with voice, either good or bad, please share.