Technical Query on the HL7812

IoT Modules
1
  1. Does this chip require an external host, or can it operate standalone?
  2. Does the cellular module support IP pass through to an external ethernet controller? Any design examples?
  3. What is the guaranteed product life cycle?

Thanks and Regards
Manju

2
  1. HL781x module needs an external MCU
  2. it supports PPP dial up from the host:
3

Does the cellular module support IP pass through to an external ethernet controller? Any design examples?
What about this

Thanks and Regards
Manju

4

what do you mean about this?
Can your controller PPP dial up through this HL78 modem?