SIPNEX Telecom: the carrier built by operators, for operators.

The VoIP industry has three kinds of providers: carriers, resellers, and CPaaS platforms. Most operators running VICIdial or a predictive dialer end up on a reseller or a CPaaS markup. That means paying two or three stacked margins on top of the carrier that actually terminates the traffic. When something breaks, the person on the support line has no authority over the network.

SIPNEX is the carrier. We hold the FCC license. We sign the STIR/SHAKEN attestation with our own certificate. We file the Form 499. We run the switches and the session border controllers. When a customer calls about post-dial delay or an attestation question, the engineer who answers has root on the system in question.

We came from the operator side. We ran VICIdial at volume and fought the same B-level attestation battles. We watched good carriers get bought and ruined by CPaaS consolidation. SIPNEX is the carrier we wished we had: wholesale per-minute rates on a transparent rate card (see pricing), unlimited concurrent channels, A-level attestation by default, and a support line answered by the person who can fix the problem.

That background shapes how we run the network. High-volume outbound is a different workload from office telephony. A predictive dialer pushes large bursts of short call attempts. Answer rates move in real time as analytics engines score your caller IDs. A carrier that treats that traffic like ordinary business calling will throttle it, or quietly degrade it.

Day to day, that means running our own switching and session border controllers. It means provisioning toll-free numbers directly as a registered RespOrg through Somos. It means delivering E911 service in all 50 US states. When something breaks, the engineer who answers has direct access to the systems your traffic rides on.

Dialer operations come down to a few numbers: answer rate, cost per connect, and how long a caller ID stays clean. Calls into the major mobile networks are scored before they ring. First Orion powers T-Mobile’s Scam Likely labels, Hiya powers AT&T ActiveArmor, and TNS powers Verizon Call Filter. Those engines mark partial (B) attestation down as a lower-trust signal. Since none of the carriers publishes a figure for that answer-rate gap, we do not quote one.

That is why the attestation level matters. Because SIPNEX signs with its own certificate, an outbound call from a verified SIPNEX DID leaves the network at A-level. Because we run the switching, a burst of short call attempts from a predictive dialer is expected traffic, not an anomaly to throttle.

Billing follows the same logic. Dialer traffic bills 12/6: a 12-second minimum, then 6-second increments. A call the dialer drops four seconds after answer bills as twelve seconds, not a full minute. Under 60/60 billing, the same call rounds up to sixty seconds. Across hundreds of thousands of short calls, that rounding adds up.

Compliance is part of the workload, not an add-on. SIPNEX is registered in the Robocall Mitigation Database, and our TCPA and robocall mitigation pages spell out what we expect from the traffic we carry. Operators running call center traffic get a carrier that understands the rules they dial under.

You can reach SIPNEX by phone, by text, or by email during business hours. Phone, text, email, and the contact form all land with the same team.

• Phone: (833) 665-2220
• Text: (972) 698-5633
• Email: contact@sipnex.ca
• Hours: Mon – Fri · 9:00 a.m. – 6:00 p.m. CT

If you are asking about a dialer trunk, have five things ready. They are enough for a quote against your actual traffic profile rather than a generic rate sheet.

• Your dialer platform: VICIdial, GoAutoDial, Asterisk, FreeSWITCH, or another SIP-based system.
• Monthly minute volume and average call duration.
• Peak concurrent calls and calls per second.
• The states you dial into.
• Whether you need local DIDs, toll-free numbers, or both.

Offices and clinics can skip the dialer questions. Tell us how many extensions you need and which numbers you want to keep. Use the contact form for a written quote, or book a demo to walk through the service first.