View Single Post
TomJ's Avatar
Posts: 505 | Thanked: 665 times | Joined on Oct 2009
#6
Originally Posted by Andre Klapper View Post
I still don't know what you mean by "network" here. If you don't have a SIM card inserted you can't use GSM/... I assume.

Sorry if I'm not making myself clear... There is at least one case when the GSM network will accept a call from a device without a SIM. I was wondering whether that meant the device declared itself to the GSM network, thus giving its IMEI, when powered up or only when attempting to make the emergency call.

@andree: Thanks for that. Am I right in assuming that if there's no SIM, the GSM radio's off by default? Is that documented somewhere?