Avaya UPG ADV AES R4 BSC TSAPI 1YPP

Keep telephony integrations aligned with a one-year advanced upgrade path for Avaya AES R4 Basic TSAPI. This subscription is designed for organizations that depend on application-to-telephony connectivity for contact center operations, workflow automation, and event-driven call handling. By maintaining access to the TSAPI layer, IT teams can preserve the integration points that connect business applications to voice infrastructure. That matters when call control, routing logic, and agent workflows must remain consistent across upgrades and support cycles. For enterprises with established Avaya deployments, the value is continuity: fewer disruptions, clearer lifecycle planning, and a cleaner path to keep critical communications services in service. This package is suited to environments where telephony integration is not optional. It supports the operational discipline required by larger teams that need predictable maintenance windows, controlled upgrade timing, and a defined support horizon. If your organization depends on Avaya AES and TSAPI-connected applications, this one-year program helps protect that investment without forcing a platform change.