VoIP, SIP trunking, AI dialer servers, inbound DID numbers, toll-free origination, and a 7-tier intelligent DID API — all on one FCC-licensed carrier infrastructure built for enterprise volume.
Enterprise SIP trunks with high-volume concurrent call capacity, IP authentication, and redundant carrier routes. Deploy in minutes with provided SIP credentials.
Hosted and co-located AI-powered dialer infrastructure. AMD detection, STIR/SHAKEN compliance, real-time CDR feeds, and seamless CRM integration via API.
Local, national, and geographic DID numbers across all US area codes. Instant provisioning through our 7-tier intelligent routing API with real-time health scoring.
800, 833, 844, 855, 866, 877, and 888 toll-free numbers with custom routing, voicemail, call forwarding, and real-time analytics dashboards.
Intelligent call bots, IVR trees, voice AI integration, and automated outbound campaigns. Built on our carrier infrastructure for lowest-latency execution.
Embed outbound calling directly into your CRM, website, or web app. REST API, Webhooks, and pre-built connectors for Salesforce, HubSpot, and more.
Complete our multi-step KYC application with business information, contact details, and compliance acknowledgments.
Our compliance team reviews your application within 1–3 business days, including FCC and TCPA compliance verification.
Approved accounts receive SIP credentials, API keys, DID numbers, and rate decks within 24 hours of approval.
Your infrastructure is active. Our NOC monitors 24/7 and your account dashboard gives you real-time visibility.
NXLVL is not a reseller. We are a direct FCC-licensed carrier with our own infrastructure, interconnects, and NOC. That means fewer hops, better quality, and real accountability when issues arise. STIR/SHAKEN compliant from day one, with real-time route intelligence and an AI-powered quality layer across every trunk.
Apply for Access →Our 7-tier intelligent DID routing API gives developers instant access to the full NXLVL number inventory with real-time health scoring and automatic failover.
Hierarchical routing tiers with real-time quality scores, FAS detection, and automatic carrier failover.
Dual authentication modes — whitelist your server IPs for zero-latency auth or use API key headers.
Per-carrier, per-prefix quality scores updated every 60 seconds with automatic degraded-route exclusion.
; NXLVL SIP Trunk — Asterisk extensions.conf ; Replace credentials from your account portal [from-nxlvl-inbound] exten => _X.,1,NoOp(NXLVL Inbound Call) same => n,Set(DID=${EXTEN}) same => n,Dial(SIP/internal/${DID},30) same => n,Hangup() [nxlvl-outbound] exten => _1NXXNXXXXXX,1,NoOp(NXLVL Outbound) same => n,Set(CALLERID(num)=${YOUR_DID}) same => n,Dial(SIP/nxlvl-trunk/${EXTEN}) same => n,Hangup() ; sip.conf registration ; register => USER:PASS@sip.nxlvl.us/DID
Join FCC-compliant enterprises already running on NXLVL carrier infrastructure. Application takes under 10 minutes.