Product Bundle linking in modules

I am writing a module to create voip accounts. I have a product bundle that includes a voip account and a VPS server using a ready-made prommox module.

I have a product bundle which creates both products creating both the vps through the proxmox addon and also the VOIP account through my module.

I need to be able to find out the hostname for the vps created when I create the voip account, is there any way to pull this?

Regards