What is voice termination?

Voice termination is the delivery of a phone call from its origination point to the called number through the carrier network. Softtop provides global A-Z voice termination via direct Tier-1 interconnects to 180+ countries.

What is a Tier-1 interconnect?

A Tier-1 interconnect is a direct peering relationship between carriers with no intermediate routing hops. Direct interconnects deliver lower latency, higher ASR, and better voice quality than grey or indirect routes.

How does direct interconnect improve call quality?

Fewer routing hops means lower latency, less packet loss, and more stable jitter — the three main drivers of voice quality degradation. Softtop's Tier-1 routes keep MOS scores high across international destinations.

Which destinations are covered?

Softtop provides A-Z voice termination to 180+ countries, including all major US, UK, European, LATAM, and APAC destinations, with specialized CLI routes for markets where verified caller ID is critical.

What NOC support is available?

Softtop's Network Operations Center monitors all routes 24/7. A dedicated support team is available around the clock via ticket, live chat, or phone for wholesale and carrier customers.

How is voice termination priced?

Per-minute pricing varies by destination and route type. CLI routes carry a small premium over Non-CLI. Volume-based discounts and custom rate sheets are available — contact the wholesale team for a quote.

Direct Tier-1 Routes Across 150+ Countries.

Softtop's Voice Termination product delivers outbound call completion with a focus on caller ID authenticity and fraud prevention. Its core promise is that CLI routes pass the full originating number to every destination, improving answer rates by up to 40 percent compared to anonymous non-CLI routes — a distinction the page notes businesses, regulators, and customers all expect today. A proprietary Least Cost Routing engine evaluates live carrier rates, quality metrics, and destination rules in real time, automatically picking the cheapest compliant CLI path without sacrificing Answer Seizure Ratio or voice quality. Security and compliance are built into the onboarding flow through three automated steps: authenticating every call with STIR/SHAKEN Level A signing to block spoofed caller IDs at the source, enforcing global compliance through FCC and GDPR readiness with data residency controls and retention policies configured without additional setup, and blocking fraud in real time through IRSF detection, spoofing blocks, and SIP rate limiting that fire automatically before a fraudulent call completes. This combination of guaranteed CLI delivery, automated Least Cost Routing, and built-in fraud and compliance controls is aimed at businesses and carriers that need outbound calls to actually connect and be trusted by the recipient — contact centers, enterprises with outbound sales or support operations, and carriers reselling termination capacity — rather than businesses that only need basic PSTN connectivity. The page targets voice-heavy operations where answer rates and caller trust directly affect revenue, and where STIR/SHAKEN compliance and fraud protection need to be automatic rather than manually configured. Longer ACD signals good route quality and live traffic. Seconds from dial to first ring — lower is better. Variation in voice packet arrival — affects audio clarity. Your PBX or VoIP system originates the call and Softtop's SIP layer digitizes voice into packets. The LCR engine picks the optimal carrier path — balancing cost, quality, and coverage in real time. The call completes at the destination with verified CLI delivery and a clean audio signal. Full destination coverage across 150+ countries on a single contract. Verified caller ID delivery — critical for contact centers and compliance. Cost-optimized non-CLI paths for high-volume traffic. Automatic carrier selection balancing quality and cost per destination. Traffic reroutes instantly if a carrier path degrades — no manual work. Caller ID authentication to reduce fraud and improve answer rates. End-to-end voice traffic encryption protecting every call in transit. Live dashboard — ASR, ACD, PDD, and jitter monitoring per destination. Expert engineers available around the clock, not a ticketing queue. Agents hit voicemail on calls that should have connected. Regulated industries need call records with verified caller ID. Poor audio quality gets blamed on your brand, not your carrier. Unverified routes bypass STIR/SHAKEN and invite fraud penalties. A-Z rate sheets and direct Tier-1 quality at wholesale scale. High-ASR CLI routes and automated failover for outbound campaigns. SIP API integration with real-time call quality metrics. Global A-Z routing for high-volume operators Voice termination is the routing of outbound calls from your VoIP system to the PSTN or a destination endpoint. Voice origination is the opposite — inbound calls from the PSTN arriving into your VoIP system. Softtop provides A-Z termination alongside global origination numbers in 100+ countries, managed from a single dashboard. A-Z termination refers to a provider's ability to route calls to any destination globally — from A to Z — under a single service agreement. Softtop's A-Z termination covers 150+ countries, using direct Tier-1 carrier interconnects for every destination rather than routing specific regions via lower-quality transit providers.