--- title: "OC Rebiller - CallTower Support Scope" slug: "oc-rebiller-calltower-support-scope" tags: ["calltower", "public"] updated: 2026-09-18T16:07:31Z published: 2026-09-18T16:07:31Z canonical: "learn.calltower.com/oc-rebiller-calltower-support-scope" --- > ## Documentation Index > Fetch the complete documentation index at: https://learn.calltower.com/llms.txt > Use this file to discover all available pages before exploring further. # OC Rebiller - CallTower Support Scope ## CallTower Operator Connect Rebiller Scope of Support ## Goal: This article will review the scope of support for CallTower’s Operator Connect Rebiller program ## Support - CallTower will support all issues with PSTN calls. Teams to Teams calls would need to be opened with Microsoft support. - Support for Call Routing through Microsoft’s Operator Connect Support - Support for all CallTower Connect Issues ## MACDs (Move, Add, Change, Delete) CallTower’s Operator Connect Rebiller partners can make all needed MACD changes through CallTower Connect and the Teams Admin Portal. A service allowing customers to choose their telecom provider for making and receiving calls in Microsoft Teams. Public Switched Telephone Network, the traditional circuit-switched telephone network used for voice communication. CallTower Connect is is CallTower’s online management portal that lets administrators easily manage users, phone numbers, services, reporting, and communication settings all in one place.