03 · Asterisk · Issabel · SIP
Asterisk, Issabel and FreePBX in 24/7 production
Specialist consulting on open-source VoIP telephony: Asterisk, Issabel, FreePBX, SIP trunks, IVR and recording with high availability.
Over a decade deploying, migrating and operating enterprise open-source VoIP telephony. PBX design in pure Asterisk, Issabel and FreePBX rollouts, SIP trunks with Mexican and international carriers, complex dialplans, PHP/Python AGIs, integrations with legacy databases and active-passive high-availability architectures. If your PBX already exists but misbehaves, I run a technical audit with a remediation plan.
What you get
Pure Asterisk · Issabel · FreePBX · chan_sip + pjsip
SIP trunks with Telmex, Bestel, Vonage, Twilio and international carriers
Custom IVR with PHP/Python AGIs and WebRTC
Active-passive high availability, geo-redundancy, documented DRP
CRM, ERP and legacy MariaDB/PostgreSQL integration
QoS, codec, NAT, jitter, MOS and security-posture audits
Migrations from proprietary PBX (Avaya, Cisco, Mitel) to open source
Ready to start?
Tell me about your project. I respond personally within 24 hours.