Records needed for this question
Outsourcing contracts, carrier orders and phased migration records.
How to investigate
Assign responsibility for each service component before and after the operational handover.
An illustrative review decision
During a contact-center transition, old and new carriers may operate in parallel until acceptance. Separate the approved transition window from unexplained charges continuing after the cutover owner signs off.
What can lead to the wrong conclusion?
The old provider may retain a legitimate termination or retention obligation.
The result to retain
A transition billing responsibility ledger.
Apply the review in context
Review carrier invoice evidence, inventory, findings and recovery cases in AuditRes Telecom.
This guide describes a human review method, not a claim that every scenario is automatically detected or executed. Explore AuditRes Telecom.