Replacing FreeSWITCH + Twilio costs $50K/year. BitsPath does it for a fraction.
For ISPs, telcos, and carriers who need unified voice, messaging, and operations without the complexity and cost of stitching together open-source and SaaS tools.
The Problem
Communications infrastructure shouldn't be this painful.
FreeSWITCH maintenance costs $50K+/year
A large C codebase, constant security patches, and specialized developers who charge premium rates. BitsPath Voice replaces it with memory-safe Rust.
Twilio bills grow unpredictably
Per-message pricing with no ceiling. BitsPath's BYOP model means you connect your own providers — SMS, email, WhatsApp — with zero delivery markup.
Hardware BRAS is a single point of failure
ISPChamp's software-defined BNG replaces expensive Cisco/Juniper hardware with VPP/DPDK software that scales horizontally and costs a fraction.
Fragmented tools, fragmented data
Voice in one system, SMS in another, CRM in a third. BitsPath unifies all communications channels with a single contact record and shared analytics.
The Stack
Three products. One unified communications platform.
BitsPath
Unified Communications Cloud
Voice PBX, Email, SMS, WhatsApp, CRM, Campaigns, Inbox & Analytics — one platform replacing FreeSWITCH, Twilio, HubSpot & Zendesk. 13 services, zero delivery markup.
BitsPath Voice
Pure Rust Enterprise PBX
Carrier-grade pure Rust PBX replacing FreeSWITCH. Native multi-tenant, 214 REST endpoints, SIP/RTP/SRTP/WebRTC, SIGTRAN SMS gateway.
ISPChamp
Software-Defined BNG & ISP Operations
Complete OSS/BSS with software vBNG. Replace hardware BRAS with VPP/DPDK. Multi-vendor routing, billing, RADIUS, OLT management, CGNAT compliance.
Why KaritKarma
Built by people who run networks.
KaritKarma is an APNIC member with its own IP blocks and ASN. We don't just build software for ISPs — we operate infrastructure ourselves.
Pure Rust PBX
Pure Rust PBX replacing FreeSWITCH. Memory-safe, zero-downtime, carrier-grade. No more security-patch firefighting.
BYOP — Zero Markup
Bring your own SMS, email, and WhatsApp providers. You pay provider rates directly — no per-message markup from us.
Software-Defined BNG
Replace $100K+ hardware BRAS with VPP/DPDK software. Scale subscriber capacity without buying new boxes.
APNIC Member Infrastructure
Own IP blocks, own ASN, tier-3 data centers. Your communications infrastructure runs on infrastructure we control.
Ready to unify your communications stack?
Get a personalized walkthrough of BitsPath with one of our specialists. No commitment required.