Hooks to Provision a SIP ID

Hi I’m fairly new to this so apologies that I might be confused with hooks. Is it possible that upon registration. An API is called by auth0 to my VOIP server to create a sip id for the user and automatically associate the created sip id to the newly registred user? and shall I also use hooks to de-provision and manage the SIP ID associated with the user?

This is definitely a use case that can be handled by hooks. For example, you could create a Post User Registration Hook, that would call your VOIP server to create an SIP ID. You could then PATCH the user using our Management API v2, and store the SIP ID in the user’s app_metadata, e.g app_metadata.sip_id.