Microsoft 89CBAD27D53F M365 Domestic Calling Plan US & Canada

Add domestic public-switched telephone network calling coverage for users in the United States and Canada. Microsoft 365 Domestic Calling Plan provides a cloud-service entitlement for voice connectivity to external telephone numbers within its stated domestic geography. It applies to organizations building Microsoft 365-based voice services where users need calling capability beyond internal collaboration and directory-based communication. The plan is a service entitlement rather than an endpoint, appliance, or connectivity device. It does not replace desk phones, headsets, Session Border Controllers, network access, or other voice infrastructure that may be used in a voice deployment. Its role is to provide domestic calling scope in the United States and Canada within the Microsoft 365 calling environment. Part number 89CBAD27D53F specifically identifies the Microsoft 365 Domestic Calling Plan for US and Canada. The geographic scope is the key distinction: it addresses domestic calling across these two countries rather than adding physical telephony hardware or a broader communications platform. Use it where the required service component is domestic PSTN calling for Microsoft 365 voice users.