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DELIVERY PRACTICE · Communications

Corporate IP telephony and unified communications

Multi-site telephony with internal numbering, call queues, recording, CRM integration and service-quality control.

Year2022Timeline9 weeksRetail network · 12 sites and 280 extensions

Initial situation

Virtek’s own practice and distributed-company deployments

Branches used independent PBXs, internal calls were billed externally and missed requests could not be traced.

Architecture

Corporate IP telephony and unified communications

Carriers

Unified numbering and routing

Redundant SIP routes

IP-PBX cluster and redundant SIP trunks

IP-PBX cluster

Queues, IVR and recording

CRM and analytics

CRM integration and quality control

Solution scope

Retail network · 12 sites and 280 extensions

  • Unified numbering and routing
  • IP-PBX cluster and redundant SIP trunks
  • Queues, IVR and recording
  • CRM integration and quality control

Measured outcomes

12sites on one numbering plan
−39%missed inbound calls
4.4/5call-quality score
280extensions migrated

Engineer’s comment

We validated resilience by physically disconnecting each channel, not just reviewing the diagram. Routes switch automatically in real conditions.
Lead project engineer

Customer testimonial

We can trace every call and colleagues in different cities use short internal numbers.
Contact Centre Managercustomer representative · Retail network

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