RFC 6140 lets a SIP-PBX register a whole block of phone numbers with a service provider in a single REGISTER transaction, instead of one registration per address of record.

Checked 2026-09-25

Vendor
IETF
Product
SIP registration
Subsystem
registration
Deployment
any
Region
not restricted
Release range
RFC 6140
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-rfc6140-purpose. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-rfc6140-purpose

BibTeX

@misc{warmtransfer-claim-sip-trunk-carrier-turn-up-rfc6140-purpose,
  title  = {SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-rfc6140-purpose},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-rfc6140-purpose},
  note   = {Source note sip-trunk-carrier-turn-up-rfc6140-purpose, checked 2026-09-25}
}

Read in context