LIVE · CHANNELS UP49,500
VICIDIAL-NATIVE · OPERATOR-OWNED · CARRIER-GRADE
The carrier dialer operators trust.
FCC-licensed. 499-registered. STIR/SHAKEN signed with our own SP certificate. Every call we originate gets A-level attestation—no resellers, no rewrapped trunks, no downstream dilution.
OR CALL AN OPERATOR · (833) 665-2220
A -level
STIR/SHAKEN attestation, signed by us
<24 hr
From signed agreement to live trunk
99.99%
Median monthly carrier uptime
1,247+
Operators dialing on SIPNEX today
FCC LICENSED CARRIER OWN STIR/SHAKEN SP CERTIFICATE 499 FILER ID A-LEVEL ATTESTATION ROBOCALL MITIGATION REGISTERED OPERATOR-OWNED DIALER-GRADE TCPA COMPLIANT TOOLING UNLIMITED CONCURRENT CHANNELS 24-HOUR PROVISIONING FCC LICENSED CARRIER OWN STIR/SHAKEN SP CERTIFICATE 499 FILER ID A-LEVEL ATTESTATION ROBOCALL MITIGATION REGISTERED OPERATOR-OWNED DIALER-GRADE TCPA COMPLIANT TOOLING UNLIMITED CONCURRENT CHANNELS 24-HOUR PROVISIONING
The dialer operator's Monday
Your generic carrier doesn't know what you do.
They sold you a trunk designed for an office phone. You're running a call center. The misfit shows up every day—in call drops, flagged CIDs, B-level attestation, and a support queue that doesn't understand what "VICIdial" means.
Your CIDs keep getting flagged
Without direct A-level attestation, your numbers degrade fast. Most resellers can only hand you B-level.
Your answer rate collapsed overnight
Carriers change STIR policy and don't tell you. You find out when your dashboard drops 30%.
Your carrier doesn't speak VICIdial
Support tickets that start with 'what's sip.conf' are a sign you're not with the right partner.
GENERIC-CARRIER · CID POOL · LIVE
● 14● 6● 4
(470) 685-9709
CLEAN
(634) 511-2243
CLEAN
(594) 350-5632
CLEAN
(462) 784-6443
CLEAN
(857) 483-7060
CLEAN
(656) 224-1885
CLEAN
(815) 409-6293
CLEAN
(844) 897-3615
CLEAN
(605) 325-4937
CLEAN
(726) 897-6475
CLEAN
(425) 389-4395
CLEAN
(369) 873-1338
CLEAN
(574) 669-9662
CLEAN
(733) 487-4823
CLEAN
(444) 714-3743
FLAGGED
(425) 808-3992
FLAGGED
(781) 202-8052
FLAGGED
(687) 227-2148
FLAGGED
(514) 551-3752
FLAGGED
(479) 559-1801
FLAGGED
(306) 262-4678
BURNED
(413) 575-4670
BURNED
(646) 674-6583
BURNED
(552) 478-1861
BURNED
B-LEVEL ATTESTATION · downstream↓ ANSWER RATE −38% (24h)
The call path
We sign your calls. Not somebody three hops away.
STIR/SHAKEN attestation is only A-level when the originating carrier signs it. SIPNEX holds its own SP-KI certificate. We sign at our edge—not via a reseller, not via a downstream wholesaler. The cert chain stops at us.
● THE SIPNEX PATH
Your call signed once, directly, A-level.
ORIGIN
Your VICIdial
OUTBOUND
A-LEVEL · SIGNED HERE
SIPNEX
CARRIER
SIPNEX SP cert
SIGNING
TERMINATION
PSTN
A-LEVEL
DOWNSTREAM CARRIER RECEIVES
ATTEST = A
Full trust · CID stays clean
○ THE GENERIC CARRIER PATH
Re-wrapped, re-signed, downgraded.
ORIGIN
Your VICIdial
OUTBOUND
UNSIGNED
RESELLER
CPaaS layer
PASS-THROUGH
CARRIER
Upstream
SIGNING
TERMINATION
PSTN
B-LEVEL
DOWNSTREAM CARRIER RECEIVES
ATTEST = B
Partial trust · CID degrades
Receipts
Inside the SIP INVITE we put on the wire.
The Identity header carries the STIR/SHAKEN PASSporT.
It points at cert.sipnex.net, our public SP cert.
Every downstream switch on the route verifies the signature against it—and sees attest=A.
You don't need to understand the math. You just need to know: every minute you dial through SIPNEX is signed at our edge. Not relayed. Not re-wrapped.
# Outgoing SIP INVITE — what your customer's carrier sees INVITE sip:+15555550100@pstn.gw SIP/2.0 From: "Acme Calls" <sip:+18006612344@sipnex.net> To: <sip:+15555550100@pstn.gw> Call-ID: 9f8a1c2d-2026-05@vd-1.acme.io Identity: eyJhbGciOiJFUzI1NiIsInBwdCI6... info=<https://cert.sipnex.net/sp.pem> ;ppt=shaken ;alg=ES256 ;attest="A" # signed by SIPNEX Content-Type: application/sdp # downstream carriers see attest=A and trust accordingly
Capability comparison
SIPNEX vs your current carrier.
The capabilities that decide whether your dialer hits 35% answer rate or 18% answer rate. Run the comparison.
CAPABILITY
SIPNEX
GENERIC
Own FCC carrier license
Often reseller
Own STIR/SHAKEN SP certificate
Shared / inherited
Direct A-level attestation
B-level typical
Unlimited concurrent channels
Capped 10–50
VICIdial-fluent support
Generic tier-1
24-hour trunk provisioning
5–10 business days
Operator-run, not sales-run
Sales-run
Transparent per-minute pricing
Quote-gated
CONCURRENT CHANNELS · BUSINESS-HOURS PEAK
SIPNEX 52,400
Mon–Fri 8a–6p CT · unlimited at the trunk
GENERIC CARRIER 50
Capped at 10–50 per trunk · upgrade gates
PROVISIONING TIME · TYPICAL
<24hr
SIPNEX · SIGNED → DIALING
5–10 days
GENERIC · TICKET QUEUE
Network footprint
Built for North American outbound.
Routes anchored on our own gear in Lubbock with diverse interconnects into Tier-1 PSTN gateways. US primary. Canada secondary. Every packet stays on-network until it has to leave.
16
PoP locations
14ms
Median latency
99.99%
Carrier uptime
Tier-1
PSTN interconnects
Frequently asked
Operator-to-operator answers.
We dial on the same network we sell. If a question isn't here, call us—someone who's run a dialer picks up.
CALL AN OPERATOR
(833) 665-2220
What makes SIPNEX different from other SIP carriers?
SIPNEX is operator-owned: the people who built the network run high-volume outbound dialing on it themselves. We hold our own FCC license, file our own Form 499, and sign every call with our own STIR/SHAKEN certificate — the carrier answering your ticket is the same carrier signing your traffic.
Who is SIPNEX built for?
Call center and dialer operators who live and die by answer rates — on VICIdial, GoAutoDial, Asterisk, FreeSWITCH, or any SIP-based platform. If your traffic is high-velocity outbound and generic carriers keep throttling it, mislabeling it, or misunderstanding it, you are who we built this for.
Do you cap channels or throttle burst traffic?
No. There is no artificial concurrency cap and no per-channel fee at any volume. Burst traffic is what dialers produce — the network is engineered for it, and your ceiling is your own bandwidth and server capacity, not a number on our rate card.
How does SIPNEX protect caller ID reputation?
Two layers working together: every call is signed at A-level with our own SP-KI certificate, and CID pool tooling rotates and rests numbers before they burn. Attestation without pool discipline is not enough — we run both, because we dial on this network too.
Who actually signs SIPNEX's outbound calls?
We do — directly. SIPNEX holds its own STIR/SHAKEN Service Provider certificate, so calls are signed on our network instead of being reshipped upstream for B-level signing. No intermediary ever touches the attestation.
How long from signup to first call?
One business day, typically. Trunk credentials and initial DIDs are provisioned within 24 hours of a signed agreement, and number porting from your current carrier runs in the background while you dial on new DIDs.
Is SIPNEX a reseller?
No. SIPNEX is a directly FCC-licensed carrier with its own 499 filer ID, its own STIR/SHAKEN SP certificate, and its own Robocall Mitigation Database registration. Resellers borrow those credentials from someone upstream — we hold every one of them ourselves.
What compliance help does SIPNEX provide?
The carrier-side infrastructure: A-level attestation, call recording controls, opt-out signaling, and CDR data for audit trails. The legal obligations — consent capture, DNC scrubbing, calling hours — stay with you. We supply the tools and the evidence; your counsel supplies the policy.
Does SIPNEX work with predictive dialers other than VICIdial?
Yes. Any SIP-based dialer — GoAutoDial, ViciBox, Asterisk or FreeSWITCH-based platforms, or custom predictive dialers — can terminate through a SIPNEX trunk. VICIdial is where we specialize deepest, but the same high-concurrency channels, A-level attestation, and CID tooling apply to any predictive dialing platform that speaks SIP.
How is pricing structured?
Flat per-minute rates that fall as your monthly volume rises, billed in 6-second increments. No per-channel fees, no seat licensing, no long-term contract. The full tier table is published on the pricing page — no sales call required.
The next step
Talk to an operator. Not a rep.
Tell us how many instances you're running and how many minutes you dial a month. We'll tell you whether SIPNEX is the right fit—honestly.