Can anyone help me understand how outbound concurrency limits work at the moment? Based on the change logs they have changed a lot recently. How many calls can one Vapi phone number call at once? How many outbound calls can I make per day? And are the limits on account level, or org level?

Hey there! 👋 I understand you're looking for clarity on how Vapi's outbound concurrency limits work. Let me help break this down for you! I don't have complete details on all recent changes, but I can definitely explain how the current concurrency limits work based on the information I found. ## Outbound Concurrency Limits The default concurrency limit in Vapi is 10 simultaneous calls (combining both inbound and outbound calls). This limit applies to your entire account and isn't dependent on the number of users or organizations associated with it. [Vapi Billing Limits](https://docs.vapi.ai/billing/billing-limits) If you exceed this limit, new requests will either queue or be rejected until existing calls finish. When the concurrency limit is reached, calls will be dropped with a 404 status code and an error message stating "reach concurrency limit". ## Calls Per Vapi Phone Number While there isn't a specific limit on how many calls one Vapi phone number can make simultaneously, the overall account concurrency limit of 10 applies. A single Vapi phone number can handle both inbound and outbound calls simultaneously, but will be constrained by the account-level limit of 10 concurrent calls. ## Daily Outbound Call Limits When using numbers purchased from Vapi (including free telephony numbers), there is a limit of 10 outbound calls per day. This daily limit was imposed by Twilio on Vapi's account. To bypass this daily limit, you can purchase a Twilio number directly and import it into Vapi. Numbers purchased directly from Twilio don't have this daily call limit. ## Account vs. Org Level

By default, you can only make 10 concurrent calls at the same time, which is total of inbound and outbound calls, irrespective of telephone number being used.