Call center · 2024

Elite Call Center: SIP, CRM and ERP infrastructure

Complete call center infrastructure built from the ground up — Vicidial + A1SIP for VoIP telephony, call recording, custom CRM with live monitoring, ERP for operations management, and a B2B website.

Client
Elite Call Center
Timeline
6 months
elitecall.center
Elite Call Center: SIP, CRM and ERP infrastructure

SIP + CRM + ERP from the ground up

More than just a website — we built the entire technical infrastructure: Vicidial with an A1SIP trunk, call recording, a custom CRM with live monitoring and an ERP system for managing operations.

What we built

5 interconnected systems working as one — from the SIP line to the ERP dashboard.

SIP infrastructure

VoIP telephony with Vicidial + A1SIP trunk and provider failover.

Call recording

Automatic recording of every call with encrypted storage. Search by date, operator or customer. GDPR-compliant with automatic deletion.

CRM platform

Custom CRM with a complete history of every customer — calls, emails, tickets, and recordings. Real-time dashboard for managers with live operator monitoring.

ERP System

Integrated ERP for project management, invoicing, operator payroll, shift scheduling, and KPI tracking. AI-powered call quality scoring.

Website & SEO

B2B corporate website with lead generation forms, Telegram notifications for new inquiries, and an SEO strategy targeting "outsourced call center".

Call architecture

The journey of a call — from the SIP trunk to AI analysis.

  • Incoming call
  • SIP Trunk (A1SIP)
  • Vicidial / Asterisk
  • Operator + CRM
  • Recording + AI analysis
  • ERP Dashboard

Vicidial + A1SIP

Enterprise-grade dialer with full SIP integration. We configured Vicidial with an A1SIP trunk for reliable VoIP telephony with failover, codec negotiation and SRTP encryption.

  • Predictive dialer for outbound campaigns
  • Automatic inbound call distribution (ACD)
  • Multi-level IVR menus
  • Real-time wallboard for supervisors
  • Whisper, barge-in and silent monitoring
  • Blended inbound/outbound for maximum efficiency
  • DNC list management and compliance
  • Callback scheduling and retry logic

SIP Stack

Application

Vicidial, Custom CRM, Agent UI

Middleware

Asterisk PBX, AGI Scripts, AMI

Transport

SIP/TLS, SRTP, WebRTC

Trunk

A1SIP Primary + Backup Trunk

Storage

Call Recordings, CDR, Analytics

ERP modules

Custom ERP system developed specifically for managing call center operations.

HR & Scheduling

Manage operators, shifts and leave. Automatically generate schedules based on workload.

Invoicing

Automatically invoice clients by the minute, per call or at a fixed price. Export for accounting.

KPI & Reporting

AHT, FCR, CSAT, NPS — all metrics in real time. Weekly and monthly client reports.

AI Quality Scoring

AI analysis of recordings — sentiment detection, compliance checks and automated operator scoring.

Compliance & GDPR

Full GDPR compliance — encrypted recordings, consent management and automatic deletion.

Integrations

API integration with clients' CRM systems, Telegram notifications and webhooks for real-time data.

About the project

Elite Call Center is more than just a website — it is a complete technical infrastructure for a professional call centre, built from the ground up.

The SIP infrastructure is based on Vicidial with an A1SIP trunk for VoIP lines. We configured provider failover, SRTP encryption and codec negotiation. Asterisk PBX handles IVR menus, ACD routing and predictive dialing.

The call recording system records every conversation with encrypted storage and GDPR-compliant automatic deletion. The AI module analyses recordings for sentiment detection, compliance checks and automated quality scoring of operators.

The custom CRM platform provides a complete history of every customer — calls, emails, tickets and recordings. A real-time dashboard allows managers to monitor operators live with whisper, barge-in and silent monitoring.

The ERP system manages HR, shift schedules, payroll, invoicing and KPI tracking. The B2B website generates qualified leads with Telegram notifications for rapid response.

Screens

elitecall.center
Elite Call Center: SIP, CRM and ERP infrastructure — screen 1
Pelikan DTM - ERP system for warehouse, checkout and documents
Office equipment distribution · 2026

Pelikan DTM - ERP system for warehouse, checkout and documents

An integrated business process management system for an office equipment distributor: two locations, 2 564 products, a checkout with a barcode scanner, deliveries, purchase invoices, PDF documents, quotations, price lists, stocktakes, reports and a connection to the online store. Built as part of a project co-financed by the European Union.

Next.js 16React 19TypeScript

What do you want us to build?

You describe the project, we come back with questions and a price range, then a demo and a written proposal.

Clients we have worked with

  • Akbari Perfume House
  • Ministry of Innovation and Growth
  • Crypto.bg
  • Pelikan DTM
  • FIX Bulgaria
  • Vakarel
  • MysteryBet
  • Omega Light
  • National Elevator Company
  • Christian Center Sofia
  • ZapaziChas
  • UnitGold
  • AGA Transfer
  • KMP Build
  • modernoBG
  • Vida Luxe
  • Avanta
  • Baytown Machinery
  • Labimex
  • Unit.Estate
  • Elite Call Center
  • Camélia Désir
  • Videoto
  • Pro Structura