Custom Telephony
Bespoke telephony platforms, SIP trunking, advanced call routing.
AiCX's Custom Telephony practice designs and operates bespoke telephony platforms, SIP trunking, advanced call routing, and custom IVR for organizations whose voice needs don't fit the standard CCaaS model. We bring deep voice engineering — the protocols, the routing logic, the carrier relationships, and the operational discipline — to build voice solutions that off-the-shelf platforms can't.
We work across the open-source voice ecosystem (FreeSWITCH, Asterisk, Kamailio, OpenSIPS), the major CPaaS platforms (Twilio, Vonage, Plivo, Bandwidth, Telnyx), and direct carrier integration. Custom telephony is the right fit when standard CCaaS doesn't have the routing, integration, or commercial flexibility you need.
Common use cases: custom IVR with deep back-end logic, multi-tenant voice platforms (resellers, white-label), specialty routing (clinical triage, legal compliance), and high-volume voice applications where commercial CPaaS pricing doesn't work at scale.
The difference is in how we run the program — not the deck.
Plenty of vendors can quote you a seat. Few can deliver an outcome. Here's what changes when AiCX runs your custom telephony program.
Engineering depth
FreeSWITCH, Asterisk, Kamailio, OpenSIPS, and SIP-level engineering for the cases off-the-shelf can't handle.
Carrier relationships
Direct carrier interconnects with diverse routes for redundancy and cost.
Protocol expertise
SIP, RTP, WebRTC, SRTP/TLS, MRCP — the layers under the platform.
Custom routing
Any routing logic your business needs — not what your CCaaS platform allows.
Multi-tenant capable
Reseller, white-label, and BPO multi-tenant architectures.
Cost engineering
Direct carrier cost for high-volume voice without CPaaS markup.
Everything you need on day one — built in.
A custom telephony program from AiCX ships with the operational scaffolding most clients spend quarters trying to assemble in-house.
- SIP trunking and carrier interconnect
- Custom IVR with back-end integration
- Advanced call routing (skills, geo, time, language, custom)
- WebRTC voice integration (browser, mobile)
- Outbound dialer infrastructure
- Conference and collaboration platforms
- Voice recording and storage
- Real-time speech analytics integration
- TTS and STT integration
- Voice biometrics integration
- Number management and inventory
- STIR/SHAKEN attestation and branded calling
How teams put custom telephony to work.
Clinical triage routing platform
Built custom voice platform routing 4M annual clinical calls based on symptom intake, payer, and provider availability.
High-volume intake with compliance routing
Custom IVR + routing for a national legal intake operation; processes 12K calls/day with state-specific compliance routing.
Multi-tenant voice platform
White-label voice platform supporting 40+ downstream BPO clients on a single multi-tenant FreeSWITCH/Kamailio architecture.
Common questions about Custom Telephony.
Don't see your question? Talk to our solutioning team — we'll walk you through pricing, footprint, and ramp options for your specific program.
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Ready to deploy Custom Telephony?
Schedule a 30-minute working session with our solutioning team — bring your KPIs, leave with a delivery plan.