3CX to Teliqon Migration Case Study | International Contact Center Success Story

As companies grow, they often find that technology which once served them well no longer meets their needs. This was the case for a Germany-based contact center with offices across the European Union. The company had relied on 3CX for years, but as it expanded outbound operations and prepared for the next stage of growth, management began to question whether its existing phone system could keep up.

See how Teliqon helped the company move build a communications environment ready to support future growth.

Customer Profile

The customer is an international contact center headquartered in Germany with three additional offices across the European Union. The company supports corporate clients in multiple markets, handling both inbound customer service and outbound campaigns while maintaining consistent service standards across all locations.

At the time of the migration, the organization employed 248 people, including 196 contact center agents. Managing operations at this scale required centralized user administration and balanced workloads across teams.

3CX had been a practical choice for several years. Since only a portion of agents were on active calls at any given time, its concurrent-call licensing model aligned well with the company's operational needs and helped control licensing costs. As the business expanded, however, the company began looking beyond voice communications and evaluating whether its existing platform could support its long-term plans.

Industry: International Contact Center

Headquarters: Germany

Geographic Presence: Germany + three additional offices across the European Union

Locations: 4

Employees: 248

Contact Center Agents: 196

Agent Ratio: 79% of total workforce

The company's daily operations include:

• Handling inbound customer calls

• Managing outbound calling campaigns

• Routing customer interactions between agent teams

• Managing call queues

• Recording conversations for quality assurance

• Monitoring team performance

• Generating operational and management reports

Although the organization employed 196 contact center agents, not all of them were expected to be on active calls simultaneously. The actual number of concurrent conversations was significantly lower than the total number of users, making 3CX's concurrent-call licensing model a practical and cost-effective choice during the company's earlier stage of growth.

Although the migration was completed in 3 weeks, the project delivered more than a simple phone system replacement. The company established a modern cloud communications platform to support future business growth and digital transformation.

Immediately after the migration, the following milestones were achieved:

• 196 contact center agents successfully migrated to the new platform

• 248 user accounts configured and activated

• Four international locations unified within a single cloud environment

• 100% of IVRs, call queues, and routing rules validated before final cutover

• Less than 15 minutes of cumulative impact on selected call routes during the production launch

• Zero full business days of contact center downtime

After the successful migration, the company continued advancing communication processes throughout the next months. Call routing logic was refined, IVR structures simplified, CRM integration completed, outbound campaigns partially automated, and reporting capabilities centralized.

These combined operational and technological improvements resulted in measurable business outcomes:

• 24% decrease in average inbound call answer time, driven by IVR optimization, improved routing logic, and more balanced workload distribution.

• 31% reduction in missed calls, achieved via centralized queue management, faster agent reallocation, and shorter customer waiting times.

• 18% reduction in platform administration costs, as the IT team spent less time managing infrastructure, validating system compatibility, and performing routine manual administration.

• 22% faster management reporting, thanks to centralized dashboards that eliminated the need to export and consolidate data from multiple systems.

• 17% increase in agent productivity after implementing CRM integration and Auto Dialer, decreasing manual tasks and allowing agents to spend more time interacting with customers.

Why the Company Chose 3CX

When the company first implemented 3CX, its goal was straightforward: deploy a reliable business phone system that could support daily contact center operations while remaining cost-effective as the business grew. After evaluating several platforms, management selected 3CX because it offered the right balance of functionality, ease of administration, and predictable licensing costs.

One of its biggest advantages was the concurrent-call licensing model. The company could create far more user accounts than the number of simultaneous calls included in its license, making it a practical and economical choice for a contact center where only some agents are on active calls at any given time.

The platform also delivered the features the business needed to operate efficiently, including IVR, call queues, call recording, reporting, CRM integration, and flexible routing rules. The internal IT team could manage users, queues, and day-to-day configuration without relying on external support.

For several years, 3CX met the company's requirements and became a stable part of its communications infrastructure.

Challenges the Company Faced

Long story short, the company did not experience frequent outages or major reliability issues. The primary challenges were related to operational complexity, administration, and supporting an increasingly sophisticated communications ecosystem.

The decision to explore other platforms wasn't driven by dissatisfaction with 3CX.

Management began asking whether it was the right platform for the company's next stage of growth.

Supervisors and executives required:

• Consolidated reporting across all countries

• Team performance comparisons

• Agent KPIs

• Historical analytics

• Queue performance monitoring

• Rapid generation of management reports

Some of this information had to be collected from multiple sources or manually consolidated before it could be used for internal reporting.

Another strategic priority was expanding outbound operations.

The company planned to increase the number of active outbound campaigns and therefore required a centralized outbound dialing solution capable of supporting enterprise-scale operations.

Key requirements included:

• Predictive Dialing

• Progressive Dialing

• Power Dialing

• Automatic contact list management

• Configurable redial strategies

• Agent workload balancing

• Detailed campaign analytics

• CRM synchronization

A critical requirement was the ability to manage these capabilities as native platform functionality rather than building separate custom solutions for each campaign.

At the same time, the company began modernizing its quality assurance processes.

Management planned to introduce:

• Automatic call transcription

• Conversation analysis

• AI-assisted agent evaluation

• Automated call summaries

Also, the volume of administrative work increased considerably.

As a result, an increasing share of IT resources was dedicated to maintaining the existing environment rather than supporting new business initiatives.

Why the Company Chose Teliqon

After defining its business and technical requirements, the company began evaluating several cloud communications platforms. The team spoke with vendors, discussed implementation approaches, and requested live product demonstrations to understand how each solution would fit its day-to-day operations and future plans.

The evaluation went beyond comparing phone system features. The company wanted a platform that could support its international contact center today and offer flexibility to expand as the business grew. Scalability, integrations, outbound capabilities, international phone numbers, APIs, and long-term operating costs were all part of the decision.

During the Teliqon demo, the team saw that the platform closely matched the way the company already worked. It also covered many of the capabilities the business planned to introduce over the coming years. That made Teliqon a strong candidate from the start.

The evaluation continued with technical discussions and a detailed review of the platform before the final decision was made. 

In the next section, we'll look at the key reasons why the company chose Teliqon.

Several factors influenced the company's decision, but the biggest were:

Unified Cloud Communications System

Instead of managing separate systems, the IT team could administer users, phone numbers, routing rules, and multiple office locations from a single interface. 

Phased Platform Expansion

Rather than introducing every feature at once, we offered the migration started with business telephony. Once the platform was running smoothly, the company gradually added CRM integration,Auto Dialer, outbound automation, and other capabilities. 

Integration Capabilities 

Since the CRM was the primary workspace for contact center agents, the company needed a platform that could exchange data with its business systems without extensive custom development. Teliqon's APIs, webhooks, and ready-to-use integrations made that possible. 

The company also wanted to prepare for future projects. AI-powered conversation analysis was not part of the initial rollout, but it was already included in the long-term roadmap.

AI Readiness

Selecting a platform capable of supporting future AI initiatives was considered strategically important. So Teliqon provided the technical foundation for integrating external AI services, conversation analysis, call summarization, and other AI-driven quality assurance workflows.

Auto Dialer as a Separate Growth Phase

Expanding outbound operations was another strategic initiative.

Following the successful migration, the company introduced Auto Dialer for selected outbound teams.

This provided agents with:

• Predictive Dialing

• Progressive Dialing

• Power Dialing

• Centralized campaign management

• Configurable retry strategies

• Advanced outbound performance analytics

Preparing for Omnichannel Communication

Voice remained the company's primary communication channel, but it was no longer the only one on its roadmap. As part of its long-term strategy, the business planned to introduce SMS, WhatsApp, live chat, and other digital channels. Having these capabilities available within the same platform meant future expansion could happen without adding separate communication systems or increasing administrative complexity.

Custom Licensing Model

The licensing model was another factor in the decision. With nearly 200 contact center agents, the company wanted a structure that was easier to manage as the team grew. Teliqon's per-user licensing provided each agent with an individual workspace, making resource planning simpler and giving the business greater flexibility as it expanded.

Migration Process

After selecting Teliqon, the company worked closely with the implementation team to develop a detailed migration plan.

The highest priority was ensuring uninterrupted contact center operations. Given the volume of daily customer interactions, even a short telephony outage could have resulted in missed calls and disrupted business processes. To minimize operational risk, the migration was carried out in carefully planned phases.

The complete migration project was completed within three weeks and consisted of several key stages.

Phase 1. Assessment and Solution Design

The project began with a comprehensive assessment of the existing telephony environment.

The implementation team reviewed:

• SIP trunks

• International phone numbers

• IVRs

• Call queues

• Call routing rules

• Business hours

• Call recording

• User roles and permissions

• CRM integrations

Based on this assessment, the team developed a detailed migration plan and defined the sequence for deploying each component of the new platform.

Phase 2. Preparing the New Environment

Before the production cutover, the entire cloud environment was configured and validated.

This included:

• User accounts

• Roles and permissions

• Call queues

• IVRs

• Routing rules

• Security policies

• CRM integrations

• Outbound calling policies

Completing most configuration work before the final migration significantly reduced deployment risks and shortened the production cutover window.

Phase 3. Testing

Before going live, the company carried out comprehensive end-to-end testing of the new environment.

The testing process included validation of:

• Inbound and outbound calling

• Internal extension dialing

• IVR functionality

• Call routing

• Call recording

• CRM integration

• Agent workflows across multiple offices

• Failover and disaster recovery scenarios

Only after all test scenarios had been successfully completed was the final production cutover approved.

Phase 4. Phased Migration

The migration itself was performed gradually.

A pilot group of agents was migrated first. After confirming stable operation, additional teams were transferred to the new platform in stages.

This phased rollout enabled the implementation team to resolve isolated organizational and technical issues without affecting the entire contact center.

Like any migration project, this one came with a few unexpected challenges. None of them affected day-to-day operations, but each required small adjustments along the way.

One international phone number was ported a day later than planned because the previous carrier requested additional verification. To avoid disrupting customer service, inbound calls were temporarily redirected through a backup route until the porting process was complete.

After the platform went live, the team also made a small change to one IVR menu. Real customer interactions showed that a shorter call flow helped callers reach the right department more quickly, so the menu structure was simplified.

The CRM integration required a minor adjustment as well. The Caller ID format for several international numbers needed to be updated before customer information displayed correctly in every workflow.

The only change for end users involved the transition to the WebRTC softphone. A small group of agents who had previously used desk phones received brief training, and within a few days they were working comfortably in the new environment without affecting daily operations.

Migration Outcome

Three weeks after the project began, all 196 contact center agents were working on the new platform. The migration was completed without a full day of business downtime, allowing the company to continue serving customers throughout the transition.

With the new environment in place, the company turned its attention to the next phase of the project. CRM integration, Auto Dialer, advanced reporting, AI-powered features, and additional communication channels were introduced gradually as the business was ready for them.

Looking back, the success of the migration came down to a few practical decisions. The project started with a detailed technical assessment, each stage was tested before moving forward, and new capabilities were introduced step by step instead of all at once.

This approach helped the company keep operations running, made the transition easier for employees, and gave both the IT and business teams time to adapt as the platform evolved.

Capabilities the Company Gained After Migrating to Teliqon

The company introduced new capabilities in stages rather than all at once. It first stabilized the new telephony platform and then expanded functionality as each phase was completed.

Phase 1. Cloud Business Telephony

The migration began with the company's telephony infrastructure. This provided centralized management for all offices, users, phone numbers, routing rules, and roles through a single platform, together with multi-level IVRs, intelligent call queues, call recording, and modern call routing. Daily administration became simpler, and management gained a single view of the communications environment.

Phase 2. CRM Integration

After the platform stabilized, Teliqon was integrated with the company's CRM. Agents gained automatic customer pop-ups, Click-to-Call, contact synchronization, automatic call logging, call result synchronization, and automatic task creation after completed calls. This reduced manual work and shortened after-call processing.

Phase 3. Auto Dialer

Selected outbound teams were then migrated to Teliqon Auto Dialer. The platform introduced predictive, progressive, and power dialing, automatic contact distribution, configurable redial strategies, campaign monitoring, and outbound analytics. Agents spent less time dialing manually and more time speaking with customers.

Phase 4. Advanced Analytics

Managers gained centralized reporting for agent performance, queue efficiency, team workload, average answer time, missed calls, outbound campaign performance, and historical trends. With all data available in one place, management reporting became faster and required less manual effort.

Phase 5. AI Capabilities

Once the migration was complete, the company began introducing AI-powered features, including automatic call transcription, AI-generated call summaries, quality assurance scoring, compliance analysis, and key topic identification. These capabilities were added after the platform had been fully established.

Phase 6. Omnichannel Communication

The final stage expanded customer communication beyond voice by introducing SMS, WhatsApp, live chat, email, and other digital channels. Managing these channels from one platform allowed agents to work across multiple conversations without switching between separate applications.

The first improvements became visible immediately after the migration.

However, the most significant business impact was achieved several months later, after business process optimization, CRM integration, and outbound automation initiatives had been completed:

24% Reduction in average answer time

Following the migration, the company optimized its IVR structure, refined call routing policies, and balanced workloads more effectively across teams.

31% fewer missed calls

Improved routing logic, better queue management, and more effective workload distribution significantly reduced the number of unanswered customer calls.

22% faster management reporting

Previously, operational reports required collecting and consolidating information from multiple systems. After centralizing reporting and analytics within a single platform, management reporting became approximately 22% faster.

18% reduction in administrative costs

By moving to a managed cloud communications platform, the internal IT team spent considerably less time maintaining infrastructure and performing routine administrative tasks.

17% Increase in agent productivity

Following CRM integration and the deployment of Auto Dialer, agents spent less time performing repetitive manual tasks.

Automatic dialing, instant access to customer information, and automated call logging enabled each agent to handle approximately 17% more customer interactions during a typical shift.

As businesses grow, their communication needs change. A platform that worked well years ago may no longer support new goals or complex workflows.

Our client reached that point. It needed a solution to support future growth without making daily management harder.

Migrating to Teliqon allowed the company to keep operations running while introducing new capabilities step by step. Each phase was tested before moving forward, giving the IT team confidence throughout the project.

If your business is facing similar challenges, Teliqon can help you build a communications solution that matches your operational needs today and scales with your business tomorrow. Request a demo to see how Teliqon can support your migration and long-term growth.