Calls per Second (CPS) — Trunking Termination

Publisher

Twilio

URL

https://www.twilio.com/docs/sip-trunking/cps-trunk-termination

Published

2026-07-21

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Twilio website terms; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Twilio Elastic SIP Trunking allows 1 call per second per trunk per region by default for termination; trunk-level CPS of 1 to 5 is self-service and above 5 requires Twilio sales. in context
• When the Twilio termination CPS limit is exceeded, calls are rejected rather than queued, and the debugger logs error 32001 for trunk-level limits or 32012 for the pooled parent-account limit. in context
• When Twilio trunk termination CPS is exceeded, Twilio raises debugger error 32001 (SIP: Trunk CPS limit exceeded); exceeding parent-account pooled CPS raises error 32012. in context
• Raising Twilio termination CPS per region above the default carries a monthly fee, prorated when changed mid-month. in context
• Twilio's current termination CPS documentation lets customers set per-trunk CPS between 1 and 5, and directs requests above 5 to the sales team. disputed in context
• Twilio trunks created in a region other than Ashburn, VA must use parent-account pooled CPS, billed per parent account per region. in context
• By default Twilio Elastic SIP Trunking allows 1 termination (outbound to PSTN) call per second per trunk per region. in context

Cite this source record

APA

WarmTransfer. (2026, July 21). Calls per Second (CPS) — Trunking Termination. WarmTransfer. https://warmtransfer.net/knowledge/sources/twilio-docs-cps-trunk-termination

BibTeX

@misc{warmtransfer-twilio-docs-cps-trunk-termination,
  title  = {Calls per Second (CPS) — Trunking Termination},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/twilio-docs-cps-trunk-termination},
  note   = {Twilio, accessed 2026-09-24}
}