Driansh Softtech

VoIP Development

Asterisk development services for business phone systems

We build and customize Asterisk systems for businesses and VoIP providers, from dialplans and AGI apps to IP PBX and call centers you fully control.
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Free consultation with our engineers

What we build with Asterisk

Our Asterisk development services turn the open-source PBX toolkit into a phone system shaped around your business. We write dialplans, AGI scripts and ARI applications, and connect Asterisk to your CRM, billing and web apps. The result is a PBX, IVR or contact center that behaves exactly the way you work.

We also take over existing Asterisk servers. That means fixing call issues, moving from chan_sip to PJSIP, upgrading to supported releases and adding the features your team keeps asking for.

Technology we work with

  • Asterisk
  • PJSIP
  • AGI
  • AMI
  • ARI
  • FreePBX
  • Kamailio
  • WebRTC
  • PHP
  • Python
  • MySQL

What we offer

Asterisk development services we offer

Custom Asterisk apps

Build call features Asterisk lacks out of the box, using ARI, AGI or custom modules.

Dialplan & IVR design

Map your call routing, menus and time rules into clean dialplans that are easy to change.

AMI & API integration

Push call events into CRMs and helpdesks, and trigger click-to-call from your own apps.

Upgrades & migration

Move old Asterisk servers to current releases and PJSIP without breaking your existing call flows.

High availability setup

Cluster and load-balance Asterisk behind a SIP proxy so calls keep working if a server fails.

Support & maintenance

Keep your Asterisk platform patched, monitored and tuned after launch, with fixes when issues appear.

Planning an Asterisk project?

Tell us about your phone system or idea. An Asterisk engineer will review it and suggest next steps.
Talk to an Asterisk engineer

What we build

Solutions we build on Asterisk

Multi-tenant IP PBX

Hosted PBX for many business customers on shared servers.
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Call center software

Queues, agent panels, recording and live reports.
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Calling card platform

PIN-based calling with vouchers, rates and resellers.
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Voice broadcasting

Automated outbound calls for alerts, reminders and campaigns.
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Enterprise VoIP

Office phone systems with extensions, mobility and call rules.
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Why Driansh

Why teams choose Driansh for Asterisk

Beyond the PBX

We also build billing, portals, softphones and SIP proxies, so your whole voice stack fits together.

You own the code

Dialplans, scripts and documentation are handed over, so any engineer can maintain them later.

Clean, readable config

We keep dialplans modular and commented, so adding a feature does not mean untangling old logic.

How we work

From idea to live platform in four steps

  1. 01

    Discover

    We review your requirements, traffic and existing stack, then agree scope, milestones and cost.

  2. 02

    Design

    We plan the architecture, integrations and failover so the platform fits your growth plans.

  3. 03

    Build & test

    We develop in short sprints with regular demos, then load-test and QA before go-live.

  4. 04

    Deploy & support

    We launch on your servers or cloud and stay on for monitoring, fixes and upgrades.

Frequently asked questions

Get in touch

Planning an Asterisk project?

Tell us about your phone system or idea. An Asterisk engineer will review it and suggest next steps.

Tell us about your project

Share a few details and the right engineer will get back to you.

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