Voice over Internet Protocol (VoIP) telephone calls at an information handling system are managed based upon data transfer allocations associated with an information handling system wireless wide area network (WWAN) account to reduce data transfer overages at the WWAN account. If data transfer associated with a WWAN account approaches an allocation threshold, VoIP telephone calls associated with the information handling system that would use WWAN data transfer are instead configured to proceed through a WWAN telephone call with a WWAN telephone number that does not use data transfer.