What is the VOS3000 Softswitch?
VOS3000 is an enterprise-class VoIP operating system designed to meet the rigorous demands of global carrier networks, wholesale operators, and large-scale enterprise communication hubs. Developed by Linknat Limited, it consolidates intelligent protocol translation (SIP to H.323), advanced media proxying, dynamic least-cost routing, and instantaneous prepaid/postpaid billing into a single, high-performance Linux-based appliance.
Whether you are managing massive volumes of GSM gateway termination traffic, providing strict SIP trunking to IP PBX clients, or operating a multi-tiered reseller network, VOS3000 delivers unparalleled stability. It processes massive Calls Per Second (CPS) loads effortlessly while actively guarding your network against toll fraud through its robust topology hiding, dynamic blacklisting, and traffic screening mechanisms.
VOS3000 isn't just a switch; it is a complete Operation Support System (OSS) and Business Support System (BSS). Administrators interact with the core routing engine via a highly responsive Web interface and a dedicated PC client, providing real-time signaling traces, deep Call Detail Record (CDR) analytics, and granular account privilege definitions.
VOS3000 Version Evolution
VPN Worlds provides hosting, configuration, and licensing for the most stable and feature-rich versions of the VOS3000 suite. Understand the evolutionary leap from 2.1.4.0 to the flagship 2.1.8.0.
Legacy Reliability: 2.1.4.0
Considered the rock-solid foundation of modern wholesale routing. VOS3000 2.1.4.0 introduced advanced firewall protection and improved the core routing engine. It is still widely deployed by operators who require a lightweight, utterly predictable environment for simple LCR termination.
The Professional Standard: 2.1.6.0
Version 2.1.6.0 marked a massive leap in Smart Routing and SIP optimization. It introduced very strong security measures, a significantly faster GUI, and enhanced phone card modules. This version is favored by mid-to-large call centers and retail VoIP providers requiring high CPS handling.
Enterprise Flagship: 2.1.8.0
The absolute pinnacle of the VOS3000 architecture. Version 2.1.8.0 delivers the strongest stability, intelligent dynamic routing based on live ASR/ACD feedback, real-time push CDR via UDP, and an exceptionally smooth modern GUI. It is the definitive choice for global tier-1 wholesale carriers.
VOS3000 Core Features & Modules
A complete ecosystem providing absolute control over your VoIP infrastructure, from media proxying to financial reconciliation.
Intelligent LCR Routing
Automatically route calls based on Least Cost Routing (LCR), highest ASR/ACD performance, or specific time-of-day policies to maximize termination profit margins.
Real-Time Billing Engine
Instantly deduct balances for prepaid clients with zero delay. Support complex tariff structures, billing increments, and multi-currency ledgers seamlessly.
Carrier-Grade Security
Protect your network with SIP topology hiding, strict IP whitelisting, frequency capping, and automated alarms against abnormal high-volume fraud attacks.
Deep CDR Analytics
Generate exhaustive real-time reports. Analyze Call Detail Records to pinpoint routing failures, track gateway performance, and reconcile carrier billing.
SIP/H.323 Bridging
Achieve absolute network interoperability. Natively translate and bridge traffic between modern SIP devices and legacy H.323 carrier infrastructure.
Multi-Tiered Management
Provide partitioned access via the Web or PC client. Create administrator, reseller, and end-user agent accounts with granular permission controls.
Real-Time Billing & Rate Management
The VOS3000 billing engine is engineered for absolute precision, ensuring zero revenue leakage across billions of minutes. Unlike offline billing systems that process CDRs in batches, VOS3000 evaluates account balances in real-time. If a prepaid client's balance hits zero during an active call, the system executes an immediate force cut-off.
Rate Group Management: Administrators can define complex rate groups and assign them to specific accounts. The system supports multi-currency configurations and diverse billing increments, such as 1+1 (per second), 6+6, 60+6 (first minute, then per 6 seconds), and N+M intervals. You can configure peak and off-peak pricing, subscription plans, and package free duration management to suit any B2B or B2C business model.
Intelligent Reconciliation: Starting from version 2.1.7.0, the platform supports real-time intelligent reconciliation and real-time push CDR via UDP, allowing seamless integration with third-party enterprise billing systems like JeraSoft without the need for manual CSV exports.
Carrier-Grade Security & Anti-Fraud
- OS-Level Hardening: Linux security reinforcement includes SSH login email notifications, restricted root Telnet, and MySQL binding strictly to private network addresses.
- Dynamic Blacklists: Automatically detect and prevent malicious calls and brute-force toll fraud attacks by instantly blacklisting hostile IP ranges.
- Topology Hiding: Strips internal network IP addresses from SIP headers (Via, Contact, Record-Route) before pushing traffic to the public internet.
- Cryptographic Auth: VOS3000 client logins utilize SHA512 and RSA2048 authentication mechanisms, with configuration data encrypted via AES128.
System Architecture & Call Flow Pipeline
VOS3000 processes every single connection through a highly optimized internal pipeline, executing protocol translation, security checks, and exact billing in milliseconds.
Protocol Ingress & Mapping
Traffic enters the softswitch via SIP v2.0 or H.323. The system identifies the originator, performs NAT traversal via the extreme media proxy, and maps the traffic to the corresponding general or gateway account.
Authentication & Screening
The payload is checked against IP whitelists, frequency limiters, and dynamic blacklists. Topology hiding strips internal IPs to prevent network probing. Non-standard signaling is filtered and rebuilt.
Intelligent Routing Engine
The engine maps the destination prefix against the rate groups, evaluates live ASR/ACD limits, and executes Least Cost Routing (LCR). If a route fails, the system automatically attempts the next priority route.
Billing & Database Logging
Upon connection, the billing ledger activates. Post-call, the Call Detail Record (CDR)—including duration, disconnect cause, and exact cost—is instantly flushed to the secure MySQL database.
VOS3000 System Specifications
Review the exact hardware, software, codec, and protocol specifications that make VOS3000 the most reliable switch on the market.
Performance & Capacity Limits
- Concurrent Calls (No Media): Up to 100,000+ (Requires VOS5000/Cluster architecture)
- Concurrent Calls (With Media): Up to 5,000 per single server
- Online SIP Phones/Endpoints: Up to 20,000 active registrations
- Call Setup Rate (CPS): 1,200+ Calls Per Second (Hardware dependent)
- Protocol Compliance: SIP v2.0 (RFC 3261), H.323 v4
- Operating System Base: Red Hat Enterprise Linux Server 64bit / CentOS
Intelligent Routing Engine
- Least Cost Routing (LCR): Dynamic minimum rate routing evaluation
- Quality Based Routing: ASR (Answer Seizure Ratio) and ACD driven routing
- Routing Gateway Groups: Priority tiers, load balancing, and automated failover retry
- Prefix & Area Routing: Caller/Callee prefix matching, cross-carrier network interoperability
- Number Manipulation: Regex-based Caller ID / Callee ID rewriting and stripping
- Gateway Mapping: Filter by account, gateway ID, lock type, authorization type
Media & Codec Processing
- Audio Codecs: G.711 (alaw/ulaw), G.723, G.729, iLBC, GSM-FR
- Video Codecs: H.261, H.263, H.264, VP8
- Fax Transmission: T.38 pass-through and transcoding
- DTMF Handling: RFC2833, SIP INFO conversion and transmission settings
- Media Proxy: Extreme media proxy module for NAT traversal
- Value-Added Services: IVR, IP PBX, Media sampling, Media transcode, Call Recording
Carrier-Grade Security
- Network Layer: SIP Topology Hiding, Deep Packet Filtering
- OS Layer Hardening: Linux user check, prohibited root Telnet, SSH alert notifications
- Database Security: MySQL private network binding, passwordless execution disabled
- Authentication: SHA512/RSA2048 login, AES128 encrypted storage, One Time Password
- Anti-Fraud: Dynamic blacklist, prevent malicious calls, IP/MAC whitelisting
- Auditing: Detailed operational logs: time, operator, IP, content tracking
Billing & Account Management
- Billing Modes: Pre-paid and Post-paid multi-tier support
- Tariff Structures: 6+6, 1+1, 60+6, N+M interval billing, peak/off-peak rates
- Enforcement: Real-time billing with forced cut-off upon zero balance
- Account Hierarchy: General accounts, resellers, end-users, gateway mapping
- Package Management: Package group management, free duration, period rates
- Reporting: Real-time intelligent reconciliation, push CDR via UDP
Minimum Hardware Requirements
- CPU Architecture: Intel Xeon E5 Serials (or above recommended)
- System Memory (RAM): 8 GB minimum (16GB+ recommended for media proxy)
- Storage Subsystem: 146 GB SAS minimum (SSD / NVMe RAID highly recommended)
- Network Interface: Dual Gigabit Ethernet (10GbE for massive wholesale)
- High Availability: Active-Standby secondary server for seamless failover
- Database Directory: Dedicated logical volume for MySQL data recovery backups
Who Relies on VOS3000?
Engineered to serve the most demanding telecommunication scenarios, from independent GSM termination arrays to massive wholesale carrier networks.
Wholesale VoIP Carriers
Handle massive international call traffic with LCR optimization, dynamic routing based on ASR/ACD, and multi-currency billing reconciliation.
Retail VoIP Providers
Perfect for SIP account-based services, mobile dialer apps, and prepaid VoIP businesses requiring real-time balance deductions and strict fraud control.
GSM Termination Operators
The ultimate softswitch for managing GOIP and Dinstar gateway farms, providing precise prefix routing and protecting SIMs via topology hiding.
Call Centers & Enterprise
Support auto-dialers, predictive dialers, IVR systems, and blended calling environments with unparalleled CPS stability and media proxying.
Calling Card Operators
Utilize built-in card business modules supporting millions of phone cards, PIN authentication, IVR integration, and complex rate group mapping.
Telecom Resellers
Create multi-level reseller structures with independent Web/PC client access, automated billing increments (1+1, 60+6), and package management.
Technical Deployment Note
For deployments handling extreme media proxying (e.g., call centers recording hundreds of concurrent calls or extensive video codec translation), VPN Worlds engineers strongly recommend deploying VOS3000 on bare-metal dedicated servers (Intel Xeon E5, 16GB+ RAM, NVMe RAID) rather than standard VPS infrastructure to guarantee 0% media packet drop.
Frequently Asked Questions
Comprehensive answers regarding the architecture, billing, and technical capabilities of the VOS3000 softswitch environment.
What exactly is the VOS3000 Softswitch?
VOS3000 is a high-performance, carrier-grade softswitch developed by Linknat, designed for VoIP wholesale, retail, and enterprise communication networks. It provides comprehensive routing, real-time billing, and management capabilities.
What is the maximum concurrent call capacity of VOS3000?
Depending on the server hardware, kernel tuning, and specific license version, VOS3000 can comfortably handle anywhere from 5,000 to over 100,000 concurrent calls without media processing, making it highly scalable for massive wholesale carrier operations.
How does the real-time billing system work?
VOS3000 features a robust, real-time billing engine supporting both prepaid and postpaid models. It handles multi-currency conversions, complex tariff rate management, peak/off-peak billing, prefix-based billing, and instant balance deductions (force cut-off) to prevent revenue leakage.
What telecommunication routing protocols does VOS3000 support natively?
It natively supports SIP (v2.0) and H.323 protocols, providing seamless, unidirectional protocol conversion and bridging. This ensures absolute maximum compatibility across different legacy telecom networks, modern IP gateways, and IP PBX systems.
What kind of intelligent routing strategies can I implement?
Administrators can configure LCR (Least Cost Routing), ASR/ACD-based dynamic routing, prefix routing, proportional traffic distribution, time-based routing, priority routing, routing gateway groups, and area-based routing to optimize termination costs and voice quality.
Does VOS3000 include native anti-fraud and security features?
Yes, it includes robust security mechanisms such as SIP topology hiding, strict IP/MAC whitelisting, dynamic blacklists to prevent malicious calls, Call-ID screening, frequency limitations, SSH/MySQL security reinforcements, and automated email alerts for suspicious call volume spikes.
Can I manage VOS3000 remotely via a web browser?
Yes. VOS3000 offers a secure Web-based interface (Web Manager) as well as a dedicated encrypted PC client (Windows-based) for administrators and agents. It provides real-time monitoring, CDR (Call Detail Record) generation, and active call signaling tracking.
Is VOS3000 suitable for GSM termination businesses and SIM Bank arrays?
Absolutely. It is the undisputed industry standard softswitch for managing GOIP, Dinstar, Skyline, and other GSM gateway farms. Its precise routing, gateway mapping, and detailed CDR analytics perfectly complement SIM-saving and anti-blocking strategies.
What audio and video codecs are supported by the media proxy?
The integrated extreme media proxy module supports audio codecs like G.711 (a-law/u-law), G.723, G.729, and iLBC. It also supports video codecs such as H.261, H.263, H.264, VP8, and T.38 fax transmission, alongside DTMF conversion (RFC2833, SIP INFO).
What is Hot Standby, and does VOS3000 support it?
Hot standby is a high-availability configuration where a secondary server mirrors the primary server in real-time. If the primary hardware fails, the secondary server instantly takes over routing and billing. VOS3000 fully supports active-standby redundancy to ensure 99.99% uptime.
How does VOS3000 handle Call Detail Records (CDRs)?
VOS3000 stores comprehensive CDRs in a highly optimized MySQL database. It captures connection rates, average durations, originator IPs, destination IPs, and disconnect causes. Version 2.1.7.0 and above also support real-time push CDR via UDP for external billing integrations.
What is the difference between VOS3000 version 2.1.4.0 and 2.1.8.0?
Version 2.1.4.0 offers strong stability and improved routing. Version 2.1.8.0 (the latest enterprise suite) provides the strongest stability, highest SIP optimization, advanced firewall protection, intelligent dynamic routing, a modern GUI, and real-time intelligent reconciliation.
What operating system does the VOS3000 server run on?
VOS3000 is engineered to run exclusively on Red Hat Enterprise Linux (RHEL) Server 64-bit or its open-source equivalent, CentOS.
Can VOS3000 integrate with external systems via API?
Yes, VOS3000 supports external integrations through database queries (ODBC), CallXML for custom IVR scripting, and direct HTTP/API webhooks for external balance queries, account creation, and dynamic routing verification.
Does VOS3000 support calling card businesses?
Yes, VOS3000 includes robust, built-in card business modules. It supports millions of phone cards, PIN authentication, IVR prompts, automatic balance announcements, and complex rate group mapping specifically for calling card retail operators.
Complementary VoIP Infrastructure
Enhance your VOS3000 deployment with our specialized network security and bandwidth optimization suites.
SimPro Saver
Complete SIM protection seamlessly integrated with your VOS3000 LCR routing rules.
ViBE Optimizer
Reduce VoIP bandwidth usage by 80% on ADSL links connecting to your switch.
VPN4GW Tunnels
Secure encrypted tunnels protecting your gateway-to-VOS communication from DPI.
Call Filter
A highly advanced layer pre-filtering malicious test calls before they reach VOS3000.
Deploy VOS3000 Infrastructure Today
Scale your telecom business with the industry's most trusted carrier-grade softswitch. Get full access to advanced routing, absolute security, and real-time billing.
Fully Managed Hosting Options | 24/7 Expert NOC Support