We use Cal.com on purpose
Cal.com is the best open-source scheduling stack shipping today. Availability, routing, workflows, integrations: all mature, all open. So we use it inside OpsWyse for the booking surface instead of rebuilding scheduling badly.
The wrapper is the value. Wyse pulls the contact's pipeline state, the last conversation, the open deal, and turns that into a one-page pre-call brief the AE reads on the way to the call. After the call Wyse drafts the follow-up using the call notes and the deal context. Cal.com books the time. OpsWyse owns the rest of the cycle.
Open source vs agentic depth
Cal.com's open-source posture is genuine: self-host the whole thing if you want full control over scheduling data. Wysera is hosted by us. That trade is real. If sovereignty over the scheduling stack matters more than having a CRM and a marketing agent attached, Cal.com is the better answer.
Who should pick which
Pick Cal.com if scheduling is your one tool and open source is a hard requirement. Pick Wysera if you want scheduling integrated with the CRM, the marketing brand brief, and an agent drafting the work on both sides of the meeting.