Telecom shouldn't be
a black box.
We spent years dealing with legacy carriers, unpredictable per-minute billing, and degraded SIP quality. We built UnlimCall to give revenue teams the infrastructure they actually deserve.
Why we built UnlimCall
The telecom industry is broken. For decades, legacy carriers have relied on obfuscated routing tables, hidden surcharges, and per-minute billing models designed to penalize growth. As your sales team scales, your telecom bill scales exponentially.
When we looked at the market, we saw modern SaaS companies operating with lightning speed, but their underlying communication infrastructure was stuck in the 2000s. We decided to fix it.
UnlimCall was founded on a simple premise: Abstract the complexity. We handle the carrier negotiations, the localized SIP infrastructure, and the STIR/SHAKEN compliance. You just pay a predictable flat rate per seat and start dialing.
Our Engineering Principles
We are a team of SIP engineers, distributed systems architects, and telecom veterans. These are the rules we build by.
Zero-Friction Infrastructure
Telecom should feel like modern software. Provisioning a new global SIP trunk or rotating a blocked CLI should take an API call, not a 3-week email thread with an account manager.
Predictability over Pennies
We fundamentally reject the "race to the bottom" per-minute pricing model. We optimize for pure routing quality and flat-rate predictability so CFOs never have to audit a telecom invoice again.
Edge Localization
Latency kills sales calls. We deploy our SIP edge nodes as close to your call centers as possible to ensure sub-50ms audio latency, whether your SDRs are in London, Manila, or New York.
Built for Scale
Our backend isn't an off-the-shelf PBX. We built a custom, distributed routing engine capable of handling tens of thousands of concurrent sessions without dropping packets.
Ready to upgrade your infrastructure?
Join the modern sales teams routing millions of calls through UnlimCall every month.