eSIM
A SIM card that's software: provisioned over the air, no tray, no visit.
An embedded SIM built into the device and programmed remotely. For enterprise fleets the win is provisioning connectivity over the air — no SIM tray, no depot visit, no engineer with a paperclip. The BT/Ivanti launch is about doing this at managed-fleet scale.
BT and Ivanti Launch Telco-First Remote eSIM Installation for Managed Android Devices
BT Business and Ivanti have launched a telco-first way to remotely install and activate eSIMs on managed Android devices at scale
Marcus Law · 3 Jul 2026
Beyond the App: How eSIM and Network-Level Spam Blocking Are Redefining Secure Communications
Why it matters: CallTower’s eSIM for Microsoft Teams Mobile and Webex Go adds network-level spam blocking and secure native dialling, published on UC Today.
Kristian McCann · 10 Jun 2026
CallTower Elevates Mobility and Security With Microsoft Teams, Webex eSIM Access
CallTower enhances security and Microsoft Teams and Webex mobility with free eSIMs and Mutare-powered network-edge voice spam blocking.
Kieran Devlin · 10 Apr 2026