LC Phone
also LeadConnector Phone
GoHighLevel's built-in phone system (a managed Twilio integration) used to buy numbers, send/receive SMS, and make calls directly within a sub-account.
Analogy
Like having a Twilio account pre-installed and managed for you inside GHL.
Why it matters
Most GHL SMS and call automations route through LC Phone, so its setup and number provisioning directly affect deliverability of your workflows.
In practice
You purchase a local LC Phone number for a client and use it as the from-number in a workflow's SMS step.