I am having a little difficulty getting the 819 HGW ISR to work on a GSM SIM from T-Mobile. How do I "enable" the cellular interface and is that even what I need to do/start with? Doing a few show commands, the router does see the SIM card present in the slot and all information belonging to it. Ultimately, I need to be able to start a PDP session just by using the SIM on the 819. Any suggestions/assistance would be greatly appreciated. Thank you.
