FCC LICENSED CARRIER ·499 FILER ·STIR/SHAKEN CERTIFIED
SIPNEX
Solutions · VICIdial carrier

The SIP carrier VICIdial was waiting for.

Every other "VICIdial-compatible" provider is a reseller in a tier above the carrier. SIPNEX is the carrier. We hold our own FCC license, our own 499 filer ID, and our own STIR/SHAKEN SP certificate — which means we sign your calls directly at A-level, not downstream at B or C.

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VICIDIAL CARRIER, DEFINED

A VICIdial carrier is a SIP trunk provider built for VICIdial's predictive dialing: high concurrent channels, aggressive call setup, flexible caller-ID handling, and direct STIR/SHAKEN attestation. SIPNEX is that carrier — FCC-licensed with its own 499 filer ID and STIR/SHAKEN certificate, signing outbound calls at A-level, with no artificial channel caps and trunks live in 24 hours.

What generic carriers break

A VICIdial operation is not a call center. Your carrier doesn't know the difference.

Answer rate cliff

Your carrier quietly shifted attestation from A to B. Answer rate drops 30%. You find out from a dashboard, not from them.

Channel caps

You're told you have 'unlimited channels' until you hit 50 and start getting 503s during peak hours.

Support that doesn't know VICIdial

You file a ticket about sip.conf. It gets escalated three times because tier-1 thinks VICIdial is a Chinese phone brand.

One carrier, whole stack

VICIdial VoIP provider, dialer trunks, and support — one carrier.

Most operators bolt three vendors together: a VICIdial dialer host, a dialer VoIP provider for termination, and a consultant for when sip.conf breaks. SIPNEX collapses the carrier half of that stack. As a VICIdial VoIP provider we terminate your traffic as the licensed carrier of record, sign it at A-level with our own STIR/SHAKEN certificate, and back it with VICIdial support from engineers who run the dialer in production themselves.

That means one escalation path from campaign to carrier: trunks live in 24 hours, no artificial channel caps, and tickets answered by people who read carrier settings and sip.conf in the same session. Start with the VICIdial SIP trunk setup guide or compare the field in best SIP trunk for VICIdial.

Frequently asked

About VICIdial carrier service.

What is a VICIdial carrier?
A VICIdial carrier is a SIP trunk provider whose platform is specifically engineered for VICIdial's predictive dialing patterns: high concurrent channels, aggressive call setup, flexible CID handling, and direct STIR/SHAKEN attestation. SIPNEX is operator-owned — we run VICIdial ourselves and sell carrier service to other operators.
Why does my dialer need a specific carrier?
Generic carriers throttle high-velocity outbound, provide only B-level STIR/SHAKEN attestation, and have support teams that don't speak sip.conf. Dialer operators need unlimited channels, direct A-level signing, intelligent CID tooling, and engineers who understand VICIdial internals.
Can SIPNEX handle 1,000+ concurrent calls on one VICIdial instance?
Yes. Our trunks have no artificial concurrency cap. You scale channels with your instance capacity, not ours.
How do you prevent CID burn on high-velocity campaigns?
Direct A-level STIR/SHAKEN attestation (we sign with our own SP-KI certificate) plus intelligent CID pool management integrated with VICIdial's dialer logic. Both matter — either one alone is insufficient.
Do you provide STIR/SHAKEN A-level attestation for VICIdial outbound?
Yes, directly. SIPNEX holds its own STIR/SHAKEN Service Provider certificate. Every outbound call originated at our network is signed at A-level, not reshipped through a downstream carrier.
How fast can I be dialing with a new SIPNEX trunk?
24 hours from signed agreement to live trunk, typical. Complex porting takes longer, but initial DIDs and trunk credentials are provisioned within one business day.
What's the difference between SIPNEX and Bandwidth or Telnyx for VICIdial?
Bandwidth and Telnyx are generic-first CPaaS carriers. SIPNEX is operator-owned and VICIdial-native. Every decision (CID tooling, channel capacity, support model, pricing structure) is optimized for dialer operators.
Are you TCPA compliant?
SIPNEX provides the carrier-side compliance infrastructure (attestation, call recording controls, opt-out signaling). TCPA legal obligations — consent, DNC, calling hours — remain the caller's responsibility. We give you the tools. You own the policy.

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