# Softtop

> Softtop is a carrier-grade wholesale voice and VoIP infrastructure platform serving MVNOs, carriers, resellers, contact centres, and enterprises worldwide. Core products include Wholesale VoIP termination, SIP Trunking, Voice Termination, Mobile Wholesale, and DID numbers -- with coverage across 150+ countries, 99.99% uptime SLA, FAS-free billing, and AI-powered fraud detection. Rates start from $0.003 per minute on CLI routes.

Softtop connects operators to direct Tier-1 carrier relationships, eliminating multi-hop routing and grey routes. All US origination carries STIR/SHAKEN A-level attestation. The platform supports SIP/RTP, G.711/G.729 codecs, per-second billing increments, and LCR (Least Cost Routing). A 24/7/365 NOC monitors the global network in real time.

## Core Product Pages

- [Wholesale VoIP](https://www.softtop.tech/product/voice/wholesale-voip/): Bulk voice termination for carriers and resellers. CLI and Non-CLI routes, $0.003-$0.01/min, A-Z coverage 150+ countries.
- [Voice Termination](https://www.softtop.tech/product/voice/voice-termination/): Direct Tier-1 carrier connections, ASR 60-80% on premium CLI routes, PDD under 6 seconds, no multi-hop paths.
- [SIP Trunking](https://www.softtop.tech/products/sip-trunking/): SIP/RTP trunking with standard codec support, elastic channels, STIR/SHAKEN A-level attestation, and DID number porting.
- [Mobile Wholesale](https://www.softtop.tech/blog/mobile-wholesale/): Mobile wholesale voice services for MVNOs and operators -- bulk capacity at wholesale rates, FAS-free billing, AI fraud detection.
- [Contact Us](https://www.softtop.tech/contact-us/): Request a custom wholesale quote, rate card, or technical consultation.

## Key Landing Pages

- [Home](https://www.softtop.tech/): Overview of Softtop's carrier-grade voice infrastructure, products, and global coverage.
- [Blog](https://www.softtop.tech/blog/): Industry guides, product updates, and technical deep-dives on wholesale VoIP, SIP trunking, and voice infrastructure.

## Blog -- Industry Insights

- [Wholesale VoIP for Global Businesses and Voice Carriers](https://www.softtop.tech/blog/wholesale-voip/): How wholesale VoIP termination works, business models, softswitch infrastructure, QoS, and regulatory compliance.
- [Wholesale VoIP Carriers: A 2026 Buyer's Guide](https://www.softtop.tech/blog/wholesale-voip-carriers/): How to compare wholesale VoIP carriers on route quality, ASR, pricing, and support. Tier-1 vs grey-route resellers.
- [Wholesale Voice Traffic: The 2026 Operator's Guide](https://www.softtop.tech/blog/wholesale-voice-traffic/): How voice traffic flows between carriers, quality metrics, and how to test a new provider before committing.
- [Wholesale Voice Termination Explained: Routes, Rates, and Quality](https://www.softtop.tech/blog/wholesale-voice-termination/): A-Z routing, CLI quality, and Tier-1 carriers -- how they control call cost and reliability.
- [Wholesale VoIP Termination: What It Is and Why Your Business Needs It](https://www.softtop.tech/blog/wholesale-voip-termination/): Mechanics and terminology of wholesale VoIP termination; $0.003-$0.01/min rates; provider selection criteria.
- [Wholesale VoIP LCR: How Least Cost Routing Works](https://www.softtop.tech/blog/wholesale-voip-lcr/): How LCR selects call routes dynamically and why cost-only logic can hurt quality. AI-powered hybrid routing.
- [Wholesale SIP Trunking: How to Choose the Right Provider](https://www.softtop.tech/blog/wholesale-sip-trunking/): How wholesale SIP trunking works, channel sizing, cost analysis, and what to check before signing.
- [Wholesale VoIP Voice: How to Cut Call Costs and Scale Globally](https://www.softtop.tech/blog/wholesale-voip-voice/): Benefits of wholesale VoIP voice and how to pick a provider that protects costs and call quality.
- [Wholesale VoIP Minutes Provider: How to Choose the Right One](https://www.softtop.tech/blog/leading-wholesale-voip-minutes-provider/): How VoIP minutes are priced, quality metrics, and how to evaluate any provider before committing traffic.
- [Wholesale AZ VoIP Termination: How It Works and How to Choose](https://www.softtop.tech/blog/wholesale-az-voip-termination/): A-Z termination routes to 180+ countries on one SIP connection. Metrics: ASR, PDD, CLI, STIR/SHAKEN.
- [Wholesale Call Termination Rates: What They Are and How Pricing Works](https://www.softtop.tech/blog/wholesale-call-termination-rates/): Per-minute pricing drivers -- route quality tiers, billing increments, ASR thresholds, regulatory caps.
- [Wholesale Voice Providers: How to Choose the Best](https://www.softtop.tech/blog/wholesale-voice-providers/): How to compare wholesale voice providers on rate structures, route quality, fraud compliance, and self-service tools.
- [Wholesale Voice Carrier Business: Your Complete 2026 Guide](https://www.softtop.tech/blog/wholesale-voice-carrier-business/): Building a wholesale voice carrier business -- infrastructure, Class 4 softswitches, LCR, STIR/SHAKEN compliance.
- [International VoIP Wholesale Providers: How to Choose](https://www.softtop.tech/blog/international-voip-wholesale-providers/): CLI vs non-CLI routes, ASR benchmarks, rate deck analysis, and carrier-grade provider selection.
- [VoIP Wholesale Termination: How It Works and What to Know](https://www.softtop.tech/blog/voip-wholesale-termination/): Routes, billing, and quality metrics for VoIP wholesale termination -- CLI, Non-CLI, and CC options explained.
- [Mobile Wholesale Voice Services: What Operators Need to Know](https://www.softtop.tech/blog/mobile-wholesale/): Mobile wholesale for MVNOs and operators -- pricing, ASR/PDD benchmarks, fraud prevention, STIR/SHAKEN, provider checklist.
- [What Is Wholesale Voice? Complete Guide to Services](https://www.softtop.tech/blog/what-is-wholesale-voice/): Wholesale voice termination and origination explained -- scalability, global reach, and who benefits.
- [Wholesale Voice Business: Complete 2026 Guide for US Carriers](https://www.softtop.tech/blog/wholesale-voice-business/): How the wholesale voice business model works, US compliance requirements, and how to launch profitably.
- [SIP Trunking Provider: How to Choose the Right One](https://www.softtop.tech/blog/sip-trunking-provider/): Five criteria that separate commodity SIP trunking from enterprise-grade platforms -- pricing, reliability, global compliance.
- [Wholesale Voice Termination Providers](https://www.softtop.tech/blog/wholesale-voice-termination-providers/): How to evaluate and compare wholesale voice termination providers on uptime, billing, and route quality.

## Blog -- Business Phone & SIP

- [SIP Trunking vs. Hosted PBX: Which Is Right for Your Business?](https://www.softtop.tech/blog/sip-trunking-vs-hosted-pbx/): SIP trunking connects your existing PBX to the cloud; hosted PBX replaces it. Cost and feature comparison.
- [STIR/SHAKEN Explained: What Every US Business Needs to Know](https://www.softtop.tech/blog/stir-shaken-business-guide/): STIR/SHAKEN attestation, FCC TRACED Act requirements, and how Softtop handles A-level attestation automatically.
- [917 Area Code: Your Complete Guide to New York City's Iconic Number](https://www.softtop.tech/blog/917-area-code/): History, availability, and how to get a 917 area code for your business.
- [How to Port Your Business Phone Number Without a Single Missed Call](https://www.softtop.tech/blog/port-business-number-without-downtime/): Step-by-step number porting checklist for US numbers -- 5-10 business day timeline, zero downtime.

## Blog -- AI & Automation

- [How AI Receptionists Are Replacing Traditional Answering Services in 2025](https://www.softtop.tech/blog/ai-receptionist-vs-answering-service/): AI receptionists vs traditional answering services -- 24/7 availability, appointment booking, lead qualification.
- [Introducing AI Sentiment Analysis -- Now on Every Softtop Plan](https://www.softtop.tech/blog/softtop-ai-sentiment-launch/): Real-time sentiment scoring on every call, chat, and message with automatic routing when satisfaction dips.

## Blog -- Contact Center

- [Contact Center vs. Call Center: A Complete 2025 Comparison](https://www.softtop.tech/blog/contact-center-vs-call-center-2025/): Voice-only call centers vs omnichannel contact centers handling voice, SMS, email, chat, and social.
- [Building a Remote-First Customer Support Team That Actually Works in 2025](https://www.softtop.tech/blog/remote-customer-support-team-2025/): Tech stack, SLA design, and management cadence for distributed support teams.

## Blog -- SMS & Compliance

- [10DLC Registration: The Complete Guide for US Business SMS in 2025](https://www.softtop.tech/blog/10dlc-registration-guide/): Brand registration, campaign approval, and TCPA compliance for US business SMS.

## Technical Reference

- Supported codecs: G.711 (u-law/a-law), G.729
- Protocol: SIP/RTP over UDP/TCP/TLS
- Billing increments: per-second and per-6-second
- Quality benchmarks: ASR 60-80% (premium CLI), PDD < 6 seconds, one-way latency <= 150 ms (ITU-T G.114)
- Fraud protection: AI-powered real-time traffic monitoring, IRSF and bypass fraud detection, STIR/SHAKEN A-level attestation (US origination)
- Coverage: 150+ countries, A-Z termination
- Uptime: 99.99% SLA, 24/7/365 NOC
- Billing: FAS-free (False Answer Supervision-free) -- charges only for genuinely connected minutes