Asterisk VoIP Server: Open Source Telephony for Business
net-iva.com has been specializing in Asterisk since 2009. We design, implement and support telephone systems for businesses of all sizes. From small offices to call centers with 500+ users.
What is Asterisk?
The world's most popular open source telephony software
Why choose Asterisk for your business?
Asterisk was developed in 1999 by Mark Spencer and today powers thousands of telephone systems in Greece and worldwide. At net-iva.com we've been using it daily for 15+ years and know every aspect of it.
Unlike closed commercial systems, Asterisk gives you complete control. You can customize it exactly to your needs, without recurring license fees and without limitations.
It supports all modern VoIP protocols (SIP, IAX2, WebRTC) and can connect to any provider. Our professional installation ensures stability, clear voice quality and scalability for future growth.
🔧 Asterisk Technical Specifications (Version 20 LTS)
Protocols: SIP (UDP/TCP/TLS), IAX2, WebRTC, PJSIP
Codecs: G.711 (ulaw/alaw), G.722, G.726, G.729, GSM, Speex, Opus
Hardware: Digium, Sangoma, OpenVox support (E1/T1, FXS/FXO)
Databases: MySQL, PostgreSQL, ODBC, SQLite
APIs: AMI (Manager API), AJAM, ARI (REST API)
Maximum concurrent calls: 500+ (on appropriate hardware)
RAM Requirements: 4GB+ for 100+ users
CPU Requirements: 2 cores (4+ recommended for transcoding)
Complete Asterisk Services
From installation to 24/7 support, we cover every need
Asterisk PBX Installation
Complete Asterisk installation and configuration on Linux (Debian/Ubuntu/CentOS). Call routing setup, SIP trunks, queues, IVR. Operation guarantee.
Voicemail & IVR
Professional voicemail systems with email delivery. Complex IVR menus with database integration and custom prompts recording.
Call Centers & Queues
Advanced queue configuration for customer service. Real-time statistics, reports, call recording and CRM integration (suitecrm, vtiger, salesforce).
Conferencing
Conference bridges with recording capabilities, PIN access and moderation. Perfect for remote teams and client meetings.
Call Recording
Automatic recording of all calls (inbound/outbound) with file or database storage. Web-based playback interface with search filters.
Custom Development
Custom Asterisk applications: AGI scripts, ARI applications, WebRTC clients, ERP/CRM integration, billing systems and more.
VoIP Technologies & Tools
Complete solutions with open source tools
Asterisk LTS
Support for all LTS versions (16, 18, 20). Upgrades, security patches, performance optimization. Sangoma and Digium hardware integration.
FreeSWITCH
Alternative solutions with FreeSWITCH when specific features are needed. Interconnection between Asterisk and FreeSWITCH platforms.
SIP Trunking
Connection to major Greek and international providers. Multi-trunk failover, least cost routing, QoS configuration and codec optimization.
Monitoring & Reporting
Real-time monitoring with Grafana + Prometheus. Call detail records (CDR) analysis, traffic reports, user activity monitoring.
Security & Failover
High availability setups, failover clustering, DDoS protection, VoIP firewall rules, encryption (TLS/SRTP) implementation.
Performance Tuning
Kernel optimization for VoIP, real-time kernel configuration, network QoS, database optimization for high-traffic systems.
Real World Deployments
Practical examples from our daily work
🏨 120-room Hotel, Athens
Asterisk 18 with 4 E1 trunks (120 channels). Integration with PMS for automatic wake-up calls, minibar billing via phone. Custom AMI application for room status. 5 years in production.
📞 Call Center, 150 agents
Asterisk 20 with WebRTC client, real-time queue stats, screen pops with CRM data. Custom call distribution algorithm based on agent skills. Recording storage: 6 months retention.
⚡ ISP/Telco, 5000 subscribers
Asterisk-based residential VoIP platform with RADIUS authentication, real-time billing via A2Billing, failover to 3 different upstream carriers. Custom CDR processing pipeline.
Contact Us
Let's discuss your Asterisk project or VoIP requirements
Get In Touch
We respond within 2-3 hours during business days. Ask us about your specific requirements.
Visit Us
123 Business Center, Tech Park
Athens, 15125, Greece
Call Us
+30 210 123 4567
Mon-Fri, 09:00 - 18:00
info@net-iva.com
sales@net-iva.com (new projects)
Live Chat
Skype: net-iva.support
Telegram: @net-iva_eng