Purpose-built for STIR/SHAKEN compliance, FCC robocall mitigation, and the Tier-1 economics that US carriers demand.
Tier-1 Direct Interconnects
We peer directly with North American Tier-1 carriers — eliminating gray routes and middlemen. Lower PDD, higher ASR, and ACD that holds up under campaign load.
Full STIR/SHAKEN Compliance
Every call originated through Softtop is signed and attested per FCC requirements — full A-level attestation with verified caller ID on all US destinations.
Robocall Mitigation Built-In
Registered in the FCC Robocall Mitigation Database with real-time traffic analysis, KYC onboarding, and automated bad-actor blocking — keeping your routes clean.
Aggressive Wholesale Pricing
Pay-as-you-go, committed-volume tiers, and custom enterprise contracts can cut your termination costs by up to 40% compared with retail VoIP providers.
Every service is carrier-grade — engineered for the volumes, compliance requirements, and margin demands of the US market.
Optimized CLI and NCLI routes with redundant least-cost routing and 70+ global PoPs — latency under 50ms on most US-originated traffic.
Burstable concurrent channels, instant scaling, and seamless integration with FreePBX, Asterisk, Cisco, Avaya, Microsoft Teams, and any UCaaS/CCaaS platform. View our SIP trunking plans.
Purpose-built routes for outbound dialers, predictive campaigns, and contact-center workloads — with the answer rates US dialing demands.
US 8XX inbound numbers, RespOrg services, and SOMOS-compliant porting for enterprise toll-free programs.
Carrier-direct voice OTP with 99%+ global success rates for fintech, healthcare, and e-commerce verification flows.
Softtop's wholesale platform serves every layer of the US voice ecosystem — with a dedicated US account manager for every account.
Stable A-Z routes and instant capacity bursts — no gray routes, no middlemen, direct Tier-1 interconnects with transparent billing.
Resell SIP trunking, DIDs, and toll-free under your own brand with our full white-label platform and reseller billing portal.
ASR, ACD, and per-minute economics purpose-built for outbound contact center workloads at US carrier-grade quality.
Consolidate PBX, UCaaS, and global voice spend under a single wholesale agreement with dedicated US account management.
Every wholesale account includes a live analytics dashboard tracking ASR, ACD, PDD, route performance, fraud signals, and per-destination margins. Configure alerts, pull CDRs, and reroute traffic on the fly — without filing a ticket.
We decided to answer them all openly — no sales call required.