STIR/SHAKEN attestation
Your calls are signed at A-level where you own the number, so carriers pass them through with the caller ID intact instead of stamping them Spam Likely.
Overview
US termination without the usual surprises
US termination is priced differently from the UK, and that catches people out. Rates split by jurisdiction — interstate, intrastate and local — and the mix in your traffic decides your bill far more than any headline figure does. We quote against your own destination breakdown rather than against a front page.
Toll-free works the other way round from everything else. On 800, 833, 844, 855, 866, 877 and 888 numbers the called party pays, so inbound toll-free traffic earns rather than costs. If you run US inbound, say so when you ask for rates.
Everything else you already know from our UK side carries across unchanged: per-second billing from a topped-up balance, no monthly commitment, and trunks delivered as standard SIP into whatever softswitch or PBX you run.
Full attestationA-level STIR/SHAKEN signing
Per-second billinginterstate and intrastate
50 states + Canadaplus toll-free inbound
What's included
What comes with a US trunk
The parts of US termination that decide whether your calls get answered.
Interstate and intrastate
Both jurisdictions on one trunk, rated correctly per call rather than billed at a blended rate that quietly favours us.
US DIDs by area code
Local numbers in any rate centre, plus toll-free ranges, delivered over the same SIP trunk.
CNAM on outbound
Your business name registered against your numbers, so US recipients see who is ringing rather than a bare number.
Toll-free inbound pays you
Traffic to your 8XX numbers is credited, not charged. Worth structuring properly if inbound is a large part of what you do.
Same account as UK
One balance, one portal, one rate sheet covering both sides of the Atlantic. Nothing separate to open.
FAQ
Questions about US routes
They are regulated separately in the US, and intrastate is usually the dearer of the two. A provider quoting one blended rate is averaging across a mix that may not be yours — ask for both figures and compare them against your own traffic.
Not if they are attested properly and the numbers are genuinely yours. We sign at A-level where you own the number, which is what carriers look for. Labelling also depends on your calling patterns: short-duration, high-volume outbound to people who do not answer gets flagged whatever the attestation says.
No. You do need to be able to show that the numbers you present as caller ID are yours to use, which is what attestation rests on.
Yes — one balance, one portal, one rate sheet. US destinations simply appear alongside the UK ones.
Related
Other services we provide
UK Tier-1 Voice Routes
Premium UK termination on Pay As You Go terms, billed per second.
UK SIP Trunking
Your PBX connected over your own broadband, channels you control.
UK DIDs — Landline & Mobile
Geographic and mobile numbers delivered over SIP to your PBX.
Asterisk PBX Installation
On-premises or cloud builds, fully configured and documented.
Firewall & ACL Configuration
Tight access control so only your traffic ever reaches your PBX.
Sending traffic to the US?
Send us a month of destinations and we will quote interstate, intrastate and toll-free against your actual mix.