Engineering capabilities
- Inbound and outbound trunk setup
- Number provisioning
- Call and message API integration
- Route failover
VoIP
Plivo
Voice and messaging API provider with zentrunk SIP trunking, suited to platforms that need one carrier relationship for calls and SMS.
Security & hardening
- IP ACL and digest authentication
- TLS transport
- Usage caps and alerting
Plivo trunking and API integration
One provider for voice trunking and messaging, connected to the PBX for calls and to applications for programmable flows.
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01
Plivo platform
- Zentrunk SIP trunk
- Numbers
- Voice / SMS APIs
Inbound and outbound trunks configured separately with their own controls.
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02
Authentication
- IP ACL
- Digest credentials
- TLS transport
Access lists kept current as PBX addresses change.
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03
PBX / application
- Trunk termination
- Call routing
- Webhooks
Application events delivered to endpoints you control and can verify.
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04
Controls
- Usage caps
- Destination restrictions
- Alerting
Alerts on unusual volume, not just on billing thresholds.
Frequently asked questions
Can voice and SMS share one provider sensibly?
Yes, and it simplifies numbering and billing. Keep the credentials and permissions separate per workload so a compromise of one is contained.
How is inbound failover handled?
A secondary termination address on the trunk, plus a PBX health check so traffic moves before users report faults.
Do we need programmable flows?
Only when routing depends on application data. Standard IVR and queue behaviour belongs on the PBX where it is easier to change.
Scope the work before you commit budget
Send the environment details and get an engineered proposal with assumptions, risks and a rollback path.