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.