> ## Documentation Index > Fetch the complete documentation index at: https://docs.telli.com/llms.txt > Use this file to discover all available pages before exploring further. # Connect your calendar > Choose the right calendar integration for your telli agents and configure booking workflows for Calendly, Zeeg, Cal.com, HubSpot Meetings, or a custom calendar API. telli calendar integrations ## Overview telli supports multiple calendar integrations so your agents can check availability and book appointments during calls. In the telli app, open an agent and go to **Calendar Integration** to choose the calendar setup that fits that workflow. Calendar integration in the telli app ## Integration options ### Calendly Use Calendly when you want telli to book against an existing Calendly event type and fill booking fields dynamically during the call. * [Calendly](integrations/calendly) ### Zeeg Use Zeeg when you want telli to book against existing Zeeg scheduling pages and fill custom invitee questions during the call. * [Zeeg](integrations/zeeg) ### Cal.com Use Cal.com when your team already manages scheduling through Cal.com and you want agent-specific event routing. * [Cal.com](integrations/cal-com) ### HubSpot Meetings Use HubSpot Meetings when appointments should be booked through HubSpot meeting links. * [HubSpot Meetings](integrations/hubspot-meetings) ### Custom calendar Use a custom calendar when you want telli to call your own scheduling API instead of a built-in provider. * [Custom calendar](integrations/custom-calendar) ## Which option should you choose? * Choose **Calendly**, **Zeeg**, **Cal.com**, or **HubSpot Meetings** when you already use one of those scheduling tools * Choose **Custom calendar** when you need telli to work with your own booking system or internal scheduling API * Configure calendar integrations per agent when different agents should book for different teams, reps, or workflows