Starlink uses Grok’s voice model to handle customer service calls.
Here’s a tidbit in SpaceXSI’s announcement post for Grok Voice 3.0 today:

TL;DR
- Starlink call centers use Grok Voice for customer service.
- They handle 20,000 calls daily across multiple languages.
- About 70% of calls are resolved without human intervention.
- One in four sales calls result in a purchase.
- Grok Voice 3.0 agents can verify customers, troubleshoot hardware, issue credits, and ship replacements.