# Increase message throughput in WhatsApp
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Message throughput is the number of incoming and outgoing messages per second (MPS) for a phone number. By default, each phone number has an MPS of 80. Meta can increase your MPS to 1,000 if you meet the following requirements:
+ The phone number must be able to send an unlimited number of [business-initiated conversations](increase-message-limit.md#increase-message-limit.title)
+ The phone number must have a [quality rating](understanding-phone-number-quality-rating.md#understanding-phone-number-quality-rating.title) of medium or higher.