Inbound Call Rate Limits

To prevent spam and abuse from overwhelming the system, inbound calls to any given number are subject to rate limits. These are safeguards, not a sign of something wrong with your account — but it's useful to know they exist if you're expecting a call spike.

The limits

• IVR numbers — no rate limit.
• Voice AI numbers — limited above roughly 200 calls per minute to or from the same number.
• Regular (standard routing) numbers — limited above roughly 10 calls per minute from the same number, or 15 calls per minute to the same number.

Hitting a limit blocks just that individual call. If your account racks up more than 5 such violations within an hour, inbound calling is blocked account-wide until it's reviewed.

How to avoid hitting them

• Route high-volume traffic through an IVR — since IVR numbers aren't rate-limited, this is the right setup if you expect call spikes (an ad campaign, a live event, etc.).
• Spread volume across multiple numbers rather than funneling everything through a single line.

If your account gets blocked

Contact support with your account details — they can review the block, restore inbound calling, and discuss a higher threshold if your legitimate call volume regularly approaches these limits.