Expertise in SIP Routing and Proxy Servers
We build SIP proxy servers with call handling and routing logic designed for efficiency and long-term maintainability.
Carrier SIP Telephony Fabric
Kamailio SBC + FreeSWITCH Cluster
PSTN / SIP
SIP Trunk
G.711 / Opus
Load Balancer
Kamailio SBC
Sub-10ms Routing
Media Cluster
FreeSWITCH
100k+ Channels
Client Endpoint
WebRTC / App
SRTP Encrypted
Packet Jitter: < 2msCodec Transcode: Hardware AccelFailover Time: < 50ms
Hire OpenSIPS Developers
Build High-Performance, Scalable, and Carrier-Grade VoIP Solutions with Expert OpenSIPS Developers
Modern communication platforms are carrying more traffic than ever, and the tolerance for downtime or poor performance is basically zero. Businesses running SIP-based infrastructure need systems that stay solid under pressure – not just in testing, but when real users and real call volumes are hitting the platform day after day.
OpenSIPS is built for exactly that kind of environment. At Dialiqo, our OpenSIPS developers have the depth of knowledge to build SIP routing engines, carrier-grade VoIP platforms, and enterprise communication systems that genuinely hold up. We work from your actual requirements – not a generic starting point that gets customized to fit.
Get Started Today!Why Hire OpenSIPS Developers from Dialiqo?
OpenSIPS is powerful, but it is not forgiving of inexperience. Getting the routing scripts right, handling failover correctly, managing load under peak conditions – these things require someone who has done it in production before, not someone learning on your project.
Our team has that production experience. We know how OpenSIPS behaves under real traffic, where it tends to trip up less experienced developers, and how to build systems that stay reliable once they are live.
Request a CallCarrier SIP Telephony Fabric
Kamailio SBC + FreeSWITCH Cluster
PSTN / SIP
SIP Trunk
G.711 / Opus
Load Balancer
Kamailio SBC
Sub-10ms Routing
Media Cluster
FreeSWITCH
100k+ Channels
Client Endpoint
WebRTC / App
SRTP Encrypted
Packet Jitter: < 2msCodec Transcode: Hardware AccelFailover Time: < 50ms
Carrier-Grade VoIP Solutions
Our developers design telecom-grade systems capable of carrying large volumes of communication traffic without any degradation in performance.
High Scalability
OpenSIPS is designed for high-load environments. We make sure the architecture grows cleanly with your traffic rather than requiring a rebuild later.
Custom VoIP Infrastructure
We build platforms around your specific requirements. There is no off-the-shelf template being adapted here.
Flexible Hiring Models
Hourly, part-time, or full-time – whatever fits your project and your timeline.
Our OpenSIPS Development Services
01
Custom OpenSIPS Development
We build customized communication systems on OpenSIPS from scratch, tailored to your environment and requirements. Solutions include:
- • SIP proxy servers
- • VoIP platforms
- • Messaging systems
- • Real-time communication applications
02
SIP Server Development
High-performance SIP servers built on OpenSIPS, designed for stability and efficiency under load. Capabilities:
- • SIP routing
- • Load balancing
- • Session management
- • Failover handling
03
VoIP Infrastructure Development
Scalable VoIP infrastructure for enterprises and telecom providers that handles real traffic conditions. Features include:
- • High concurrency support
- • Distributed architecture
- • Traffic management
- • Media routing
04
Load Balancing and High Availability
Redundancy and failover are built in so the platform keeps running even when individual components have problems. Includes:
- • Load balancing
- • Failover systems
- • Redundancy setup
- • Clustering
05
Integration Services
We connect OpenSIPS with the other platforms and tools your business depends on. Integration areas:
- • Asterisk & FreeSWITCH
- • CRM systems
- • Billing platforms
- • APIs and third-party tools
06
Security and Optimization
Security is treated as a core part of the build, not something added at the end. Includes:
- • SIP authentication
- • DDoS protection
- • Fraud prevention
- • Traffic filtering
07
Maintenance and Support
We stay engaged after deployment to keep the system performing well as things change. Includes:
- • Monitoring & troubleshooting
- • Performance optimization
- • Security updates
- • System upgrades
Why Choose OpenSIPS for VoIP Development?
High Performance
OpenSIPS processes high volumes of SIP traffic efficiently and is trusted by telecom providers running large-scale platforms around the world.
Open-Source Flexibility
You have complete control over your routing logic and system behavior. No vendor lock-in, no licensing constraints.
Scalability
OpenSIPS supports distributed and cloud-based deployments and scales from mid-sized setups all the way to carrier-grade infrastructure.
Cost Efficiency
Building on OpenSIPS brings down infrastructure and operational costs compared to proprietary SIP server alternatives.
Industries We Serve
Our OpenSIPS developers have delivered solutions across a range of industries:
Telecom providers
Healthcare (Telemedicine platforms)
BFSI (Secure communication systems)
E-commerce (Customer support systems)
Logistics (Fleet communication)
IT & SaaS companies
Technologies Our OpenSIPS Developers Use
Core Technologies:
SIP, RTP, WebRTC, TCP / IP, UDP, NAT traversal
OpenSIPS Expertise:
routing scripts, Dispatcher module, Load balancing modules, Database integration
Programming Languages:
Node.js, Python, PHP, C
Databases:
MySQL, PostgreSQL, Redis
Cloud & DevOps:
AWS, Google Cloud, Docker & Kubernetes
Key Features of Our OpenSIPS Solutions
High Performance
Handles high SIP traffic volumes without slowing down, even during peak usage periods.
Scalability
Grows with your traffic and user base without needing to be redesigned along the way.
Advanced SIP Routing
Routing logic built around your specific requirements, not adapted from a generic template.
High Availability
Failover and redundancy keep the platform running when individual components encounter issues.
Secure Communication
Strong security built in from the ground up - not bolted on after the fact.
Flexible Architecture
The system is shaped around your business needs, not the other way around.
Why Choose Us?
We build voicebots with deep FreeSWITCH integration for unmatched flexibility and reliability.
Hiring Models
Dedicated Developers
A full-time developer focuses entirely on your project for however long you need them.
Hourly Hiring
Works well for short-term tasks or targeted work on an existing system.
Project-Based Hiring
Fixed cost and timeline for a well-defined scope with agreed deliverables.
Frequently Asked Questions
OpenSIPS is an open source SIP server for creating scalable VoIP systems, SIP routing engines, and high-performance communication infrastructure.
OpenSIPS requires real expertise to configure and run it properly. A developer who understands the platform builds a system that performs well, scales without problems, and is stable in production.
Yes. OpenSIPS is built for carrier-grade deployments and can scale to handle high traffic volumes.
That depends on the scope of the project and what hiring model fits your scenario. Contact us and we will provide you with a direct estimate.
Yes. We often integrate OpenSIPS with other VoIP platforms, CRMs, billing, and third-party APIs.
Yes, if done well. Security is all about how you configure and maintain the system—and that’s exactly why it matters to work with experienced developers.
OpenSIPS-based systems are used by telecom providers, healthcare companies, financial services firms, and SaaS companies.
Yes. We also have hourly and project-based options that work well for shorter or more focused engagements.
Our OpenSIPS Development Process
Requirement Analysis
We start by getting a clear picture of your communication needs, your existing setup, and what you want the system to do going forward.
System Design
We map out a scalable architecture that fits the current project and leaves room to grow without a full rebuild later.
Development
Our developers build your solution using proven OpenSIPS practices and the tools that suit the job.
Testing
We run thorough performance and reliability checks before anything goes into a live environment.
Deployment
We handle the rollout and stick around to make sure the system is running correctly in your environment.
Ongoing Support
After launch we keep monitoring and refining the system as your traffic and requirements shift.
Ready to Hire OpenSIPS Developers?
If you need a team that can build an OpenSIPS – based communication system that handles real scale, stays secure, and performs reliably day in and day out – we are ready to help.
Our developers have solid hands – on experience with OpenSIPS and have delivered carrier – grade infrastructure for businesses across many different industries.
Get in touch today and let us talk about what you want to build.
Request QuoteReady To Get Started?
With decades of experience and know-how of software development essentials, we build future-proof, intuitive, and highly scalable web, mobile, and VoIP solutions. Bring the ultimate success for your business with Next-Gen, Tech-Empowered Solutions.