Carrier-Grade Wholesale Voice Infrastructure

Global Voice Termination & Carrier Interconnects

High-capacity A-Z voice termination and direct international DID origination. Built for telecommunications operators, VoIP resellers, and high-volume enterprise dialers with sub-10ms route discovery and CLI assurance.

✓ 180+ Direct Tier-1 Carrier Interconnects
✓ Guaranteed CLI Delivery & STIR/SHAKEN A-Attest
✓ Ultra-High 1,000+ CPS Burst Capacity
✓ Dynamic Quality-Based Least Cost Routing (LCR)
Request Wholesale Rate Deck View Termination Rates
Carrier Route Engine • LCR Active
Direct Interconnects: 184 Up
CPS: 850 / 1000
US-EAST-1 -> UK-LON-02 Latency: 11ms • ASR: 99.2%
EU-FRA-3 -> UAE-DXB-01 Latency: 28ms • ASR: 98.7%
APAC-SIN -> US-WEST-2 Latency: 42ms • ASR: 97.9%
Automated Billing: Real-time per-second billing with zero minimum duration increments.
1,000+
Calls Per Second (CPS) Throughput
180+
Global Tier-1 Carrier Interconnects
99.2%
Average Answer-Seizure Ratio (ASR)
99.9%
Core Softswitch Redundancy
Carrier Telecom Solutions

Built for Global Scale & Maximum Margin

Premium CLI routes, real-time routing algorithms, and transparent wholesale rates.

Global A-Z Termination

Termination routes reaching over 200 countries and territories with guaranteed Caller ID (CLI) delivery and sub-second PDD (Post-Dial Delay). Termination reach is wider than number availability, which covers 100+ countries. See wholesale VoIP rates and provider selection.

Dynamic LCR Engine

Intelligent route selection algorithms balance lowest cost with highest ASR and ACD, maximizing margins on every call second.

STIR/SHAKEN Compliance

Full cryptographic call signing with Full 'A' Attestation. Protect your outbound calls from being flagged as spam or scam.

Scale Your Telecom Operations Today

Connect with our wholesale carrier desk for custom high-volume interconnect pricing.

Contact Carrier Sales
Wholesale voice termination is the business of carrying another carrier's or reseller's outbound call traffic to its destination network, sold at per-minute rates by destination prefix rather than per user.

Wholesale buyers care about three things: the rate per destination, whether the route actually completes calls, and whether caller ID survives the journey. Everything below is organized around those.

How does wholesale voice pricing work?

Wholesale voice is priced per minute, per destination prefix, and rates change frequently as underlying carrier agreements move. There is no single headline price — a rate deck is a file of thousands of prefixes, and the number that matters is the blended cost across the destinations you actually send.

This is a different commercial model from our per-seat business plans. If you are buying phone service for employees rather than carrying traffic, our per-user pricing from $15 per user per month is the relevant page.

What is ASR and why does it matter more than rate?

ASR (Answer-Seizure Ratio) is the percentage of call attempts that are answered. A cheap route with poor ASR costs more in practice than a slightly dearer route that completes: failed attempts consume capacity, frustrate end users, and often get retried, multiplying the load.

Evaluate routes on ASR and ACD (Average Call Duration) together. A route showing high ASR but very low ACD often indicates calls connecting to something other than the intended party — false answer supervision, for instance.

Will caller ID (CLI) be preserved?

Yes — Salamtalk provides guaranteed CLI on supported routes, meaning the calling number you present is passed through to the terminating network rather than stripped or replaced.

CLI integrity matters commercially, not just cosmetically. Calls arriving with missing or suspicious caller ID are increasingly filtered by terminating carriers and handset-level spam screening, so a route that mangles CLI quietly destroys answer rates.

How does least-cost routing work?

A dynamic LCR engine selects the cheapest viable route for each call at the moment of dialing, then fails over to the next option when a route degrades or rejects the attempt.

The important word is viable. Pure cost-ordered routing sends traffic down failing routes repeatedly. Quality-weighted LCR factors in current ASR and completion behavior, so the cheapest route that is actually working wins — not simply the cheapest on paper.

What capacity and compliance support is available?

The platform handles high CPS (calls per second) for dispatch, alerting and campaign traffic, with STIR/SHAKEN attestation on US traffic. Interconnects are available over SIP with TLS 1.3 and SRTP.

If you operate your own switch, you can point trunks at us directly — the platform interoperates with Cisco CallManager, Asterisk, FreePBX, 3CX, Microsoft Teams Direct Routing and Avaya Aura. See SIP trunking if you need channels rather than wholesale minutes.

Frequently asked questions

How do I get a wholesale rate deck?

Contact our carrier team with your traffic profile — destinations, estimated monthly minutes and required CPS. Rates are quoted per destination prefix and reviewed regularly as underlying carrier agreements change.

What is the difference between wholesale voice and SIP trunking?

Wholesale voice is per-minute termination for carriers and resellers carrying third-party traffic. SIP trunking sells concurrent channels to an organization for its own calls. If you are connecting your own PBX for your own staff, SIP trunking is usually the right product.

Do you support STIR/SHAKEN attestation?

Yes. US traffic is signed with STIR/SHAKEN attestation, which helps calls pass terminating-carrier spam filtering and arrive with intact caller ID.

What ASR should I expect?

ASR varies by destination, time of day and the quality of the traffic itself. We report per-route ASR and ACD so you can compare routes on completion behavior rather than headline rate alone.

Can I test routes before committing volume?

Yes. We provision test credentials so you can validate completion rates, audio quality and CLI delivery on your own destinations before moving production traffic.