Tag
cps
3 posts.
Calls-per-second (CPS) limits and your carrier
What CPS means, why carriers cap how fast you place calls, and what happens — 503s and congestion — when you push past the limit.
Read postThrottling calls-per-second to protect your carrier
Practical pacing to stay under your carrier's CPS cap: lower the auto dial level, ease pacing, and spread call placement across trunks.
Read postCarrier rejecting calls (503/603): what it means
A 503 means the carrier could not take the call right now — overload, CPS limit, or no route. A 603 means it actively declined. Here is how to tell them apart and fix each.
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