About Madrid Integration Services
A global VoIP partner built for businesses that take voice seriously.
We design, operate, and support voice infrastructure across six countries. The work is unglamorous, technical, and constant — which is why we focus on doing it well rather than talking around it.
Who we are
A telecommunications company, in the original sense of the word.
Madrid Integration Services operates voice infrastructure for businesses that need international reach without surrendering quality, compliance, or operational visibility. Our customers are contact centers, multinational employers, SaaS platforms with voice workloads, BPO operators, and enterprises with cross-border customer bases.
We are FCC approved and operate in accordance with US telecommunications compliance requirements, while extending service across the United Kingdom, Canada, Australia, Germany, and China. Each market is treated as its own operational context, not a footnote on a coverage map.
The company exists because international voice is still genuinely difficult. Numbers don't behave identically across regulators. Codecs degrade in ways that look invisible until a customer is on the call. Interconnects fail with regional patterns. We build and run the network with all of that in mind.
Our mission
To deliver voice infrastructure that businesses can build on — not work around.
Every routing decision, compliance posture, and support interaction is judged against a single question: does this make our customer's voice operations more dependable tomorrow than they were today? When the answer is yes, we ship. When it isn't, we don't.
In practice
- Carrier-grade voice quality as a baseline expectation
- Compliance-aligned operations across every market we serve
- Engineering-led support for both routine and critical issues
- Transparent communication during incidents and migrations
Why compliance and reliability matter
In VoIP, the consequences of cutting corners are loud.
A consumer SaaS bug ships a stack trace. A misrouted voice call shows up as a frustrated customer, a regulator inquiry, or a quietly churned account. Reliability and compliance aren't features — they're the floor.
Customer trust is auditory
If a call sounds wrong, customers don't file a support ticket. They lose confidence in the business behind the line. Audio quality is brand quality.
Regulators care about origin
Caller ID integrity, robocall mitigation, and number ownership are scrutinised. Voice operations that don't take this seriously become liabilities.
Networks degrade quietly
Voice problems often start as small statistical shifts. Without active monitoring, they grow into outages. We monitor what matters, not what's easy to chart.
Values
What we hold ourselves to
Values are easy to write down and hard to operate by. These are the four we measure ourselves against when we make trade-offs that no customer would see.
Reliability before novelty
We optimise for the boring metrics that actually matter to a business — ASR, MOS, post-dial delay, jitter — before chasing any other story.
Compliance as identity
FCC approval and adherence to regional telecommunications rules are how we operate by default, not exceptions we make when audited.
Global, but grounded
Local numbering, regional interconnects, and country-specific operational realities are respected. Telephony isn't a single global protocol stack.
Engineering-led service
Our support engineers can read a SIP trace, follow an RTP stream, and explain why an interconnect is misbehaving — without escalation tiers.
Our journey
How the network was built — and how it keeps growing.
The company has evolved deliberately. Each phase was driven by what customers needed next, not by a roadmap written for press releases.
Phase 01
Foundational network build
Established core SIP infrastructure with redundant signalling and standards-based interoperability across primary US and European routes.
Phase 02
Regulatory alignment
Secured FCC approval and aligned operational processes with US telecommunications compliance requirements, including STIR/SHAKEN awareness.
Phase 03
Coverage expansion
Extended DID inventory and termination paths into the UK, Canada, Australia, Germany, and China to support cross-border customer journeys.
Phase 04
Operational maturity
Hardened monitoring, incident response, and provisioning workflows so customers experience a consistent service surface — not a fragmented one.
Service philosophy
How we run the business
Voice deserves more than a dashboard.
Self-serve telecom portals are useful — until something breaks. Then they stop being useful very quickly. We invest in the human and operational layer that picks up where the dashboard stops.
01
We treat every customer's voice traffic as if it carried our own revenue. Configuration shortcuts, untested routes, and unmonitored interconnects don't make the cut.
02
We document. Numbering plans, routing logic, failover behaviour, and operational runbooks are written down, reviewed, and kept current — not held in someone's head.
03
We say what we don't do. If a request sits outside our competence or our compliance posture, we recommend an alternative path rather than improvising into risk.
How we support international communication
The work that keeps cross-border voice working.
International telephony is a system of small details. These are the ones we attend to so customers don't have to.
Numbering plan design
Region-appropriate DID structures, port-in coordination, and lifecycle tracking handled with intent.
Routing strategy
Inbound and outbound paths shaped to your business hours, geographies, and quality targets.
Interconnect health
Continuous evaluation of route quality, with quiet substitution when carriers degrade.
Migration planning
Cutovers staged, rolled forward, and reversible — never a single risky weekend.
Operational visibility
Reporting on call quality, post-dial delay, and incident patterns at a cadence that supports decisions.
Regulatory awareness
Guidance shaped by what regulators in your serving markets actually require, not industry rumour.
Work with us