In the ecosystem of Grandstream Networks—particularly within their line of carrier-grade gateways (GXW series) , analog telephone adapters (HT series) , and IP PBXs (UCM series) —firmware is often the star of the show. However, there is a secondary, equally critical software layer that administrators frequently overlook until it fails: the Voice Prompt Package . What is a Voice Prompt Package? Unlike a full firmware upgrade, which controls call routing, signaling (SIP), and hardware drivers, a voice prompt package is an audio file repository. It contains the pre-recorded, localized language prompts that users hear when they access an interactive voice response (IVR) menu via a connected analog phone.

Download the prompt package, verify its checksum, and stage it on your provisioning server. Your future self, listening to a silent *** IVR at 2 AM, will thank you.

| File Extension | Format | Typical Usage | | :--- | :--- | :--- | | | Binary image | Legacy HT70x/HT50x series ATAs | | .GXP | Encrypted Grandstream Package | GXW gateways and newer HT series | | .P (Versioned) | Plaintext mapping file | UCM PBX series (separate from system prompts) |

These are found under: UCM Web GUI -> Value-Added Features -> Digital Receptionist -> System Prompts