Custom Asterisk applications that behave like a product: PJSIP, ARI/AGI, queues and the APIs your business already runs on.
Asterisk is still the most widely hired PBX engine on earth — and the most commonly mis-hired. A working dialplan is not a platform. UnifiedPBX.in builds Asterisk as a controlled call-state machine: PJSIP at the edge, ARI/AGI for application logic, AMI for realtime UIs, and explicit failure paths when a trunk or CRM dies.
This page is for teams searching Asterisk developer, Asterisk PJSIP trunk, Asterisk ARI or a Cisco/3CX/hardware IPPBX alternative that they can actually own.
Including stubborn IMS/SIP-PRI profiles, user=phone, RPID and “registered but no calls” class failures.
Ring strategies, wrap-up, announce, skill-ish routing, spy/whisper and supervisor tools.
External apps that originate, bridge, record and hang up without stuffing PHP into extensions.conf.
Python/Node/Java AGI for IVR that already talks to a database or payment API.
AMI events for wallboards, Prometheus exporters, and fraud alerts on abnormal CPS/destinations.
AMI/ARI bind addresses, manager secrets, fail2ban, TLS and least-privilege AMI users.
If your Asterisk box is also your billing system, your CRM and your AI agent, you do not have an architecture — you have a single point of failure. We split those planes first. That is why custom Asterisk still beats a rented CCaaS when the workflow is the product (insurance, collections, clinics, field service).
Send the current architecture, call volume, carriers and the workflow you need to automate or productize. Discovery can start from a broken PBX or a blank product brief.
Discuss Your Project hello@unifiedpbx.inA practical technical discussion focused on SIP, media, tenants, AI and the delivery path — not a generic sales deck.