Call Center

Voice infrastructure for contact centers.

SIP trunks, DIDs, toll-free, recording, and STIR/SHAKEN from a single FCC-licensed carrier. Inbound and outbound on the same trunk. Scale from 20 agents to 500 without changing carriers.

Unlimited Concurrent Channels

No caps on simultaneous calls. Scale from 20 agents to 500 without carrier-side changes. Your trunk grows with your operation.

A-Level STIR/SHAKEN

Every outbound call signed with our own SP-KI certificate. Verified caller identity on every call. Higher answer rates than B-level reseller trunks.

Local Presence DIDs

DIDs in every US area code for local caller ID matching. CID rotation pools. CNAM registration included. Bulk provisioning for large deployments.

Call Recording

Carrier-level recording linked to CDRs. Compliance documentation, quality assurance, training, and dispute resolution. State recording consent laws supported.

Real-Time CDRs

Call detail records with timestamps, duration, disposition, and caller/called numbers. Feed your analytics, compliance auditing, and billing reconciliation.

Compliance Infrastructure

STIR/SHAKEN attestation, RMD registration, call recording, CDR access. The carrier-layer foundation your TCPA compliance program needs.

SIPNEX vs UCaaS contact center.

SIPNEXUCAAS CCaaS
Pricing modelPer-minute wholesalePer-seat ($50–$150/agent/mo)
100 agents, 1M min/mo$5,000–$12,000/mo$5,000–$15,000/mo + overages
Concurrent channelsUnlimitedPer-seat allocation
STIR/SHAKENA-level (own cert)Varies
Dialer supportVICIdial, Asterisk, any SIPPlatform-specific only
ContractNone12–36 months typical
CustomizationFull (your PBX, your rules)Platform-limited
Call recordingIncludedHigher tiers only

Frequently asked questions.

What does SIPNEX provide for call centers?
SIP trunks with unlimited concurrent channels, DIDs in every US area code for local presence, toll-free numbers, call recording infrastructure, A-level STIR/SHAKEN attestation, real-time CDR access, and CNAM registration. We provide the carrier-layer infrastructure. You provide the contact center software (VICIdial, Five9, Genesys, or any SIP-compatible platform).
Do you support both inbound and outbound operations?
Yes. Every SIP trunk and DID supports inbound and outbound simultaneously. Inbound calls route to your IVR, queues, or agents. Outbound calls use your DIDs as caller ID. Same trunk, same numbers, same carrier for both directions.
What dialer platforms are compatible?
Any SIP-compatible platform: VICIdial, Asterisk, FreePBX, FreeSwitch, Five9, Genesys, NICE inContact, Cisco UCCX, Avaya, 3CX, and any other system that supports standard SIP trunking. SIPNEX uses standard SIP protocol — no proprietary requirements.
How does SIPNEX help with call center compliance?
We provide A-level STIR/SHAKEN attestation (call identity verification), call recording infrastructure (for consent documentation), real-time CDRs (for compliance auditing), and carrier-level traffic monitoring. TCPA consent, DNC scrubbing, and calling hour enforcement are your responsibility — we give you the infrastructure to support those processes.
What about call recording?
SIPNEX supports carrier-level call recording on all trunks. Recordings are linked to CDRs with timestamps for compliance documentation. Recording is compatible with state consent laws — play a disclosure before recording starts. See our call recording laws guide for state-by-state requirements.
Can I scale from 20 agents to 200 without changing carriers?
Yes. SIPNEX has no channel limits and no per-seat pricing. Your trunk handles 20 concurrent calls or 2,000 without any carrier-side changes. Add agents, increase dial volume, provision more DIDs — all without upgrading your trunk or renegotiating your carrier contract.
What does it cost to run a call center on SIPNEX?
Per-minute wholesale rates from $0.005 to $0.030 depending on volume. DIDs at $1 to $3 per month for local. No per-channel fees, no per-seat fees, no platform fees. A 100-agent outbound operation running 1 million minutes per month typically pays $5,000 to $12,000 — a fraction of UCaaS or CPaaS alternatives at equivalent scale.
Do you offer dedicated account management?
For operations running 500,000+ minutes per month, yes. You get a named account manager who understands your operation, monitors your trunk performance, and provides proactive guidance on CID strategy, attestation optimization, and capacity planning.

Carrier infrastructure for your contact center.

One carrier. Every service. No platform markup.