What is the maximum number of phone numbers that vapi provides at the agency or startup tiers? Also, what is the pricing per each additional phone number at those separate tiers. And if looking to scale beyond 100 users, would it be best to sign up for enterprise.

Vapi currently allows up to 10 free US phone numbers per wallet/account. If you need to scale beyond this—especially for more than 100 users or higher concurrency—it's recommended to consider the enterprise plan, which offers unlimited concurrency and dedicated support. Details on agency/startup tier limits or pricing for extra numbers are not specified in the documentation. For custom needs or larger scale, reaching out to Vapi support or sales is advised for tailored solutions. Sources: - [Vapi Free Telephony Documentation](https://docs.vapi.ai/free-telephony) - [Vapi Phone Calling Documentation](https://docs.vapi.ai/phone-calling) - [Vapi Enterprise Plans](https://docs.vapi.ai/enterprise/plans)

Vapi provides 10 free phone numbers; additional numbers cost $2/month each. There’s no strict cap on numbers in Startup or Agency tiers, but if scaling beyond 100 users or high concurrency, the Enterprise plan is best for performance and support..