PrePaidGSM.net Forum (Archived) - View Single Post - How do sim4travel, maxroam etc. work technically?

torput · 14-04-2008, 12:24

Thanks!

So the callback system probably calls the MSISDN of the subscription and not the GSM roaming number. And some users with specific calling patterns can cause losses to these companies.

	(#3)
torput (Offline) Junior Member Newbie Posts: 2 Join Date: 14 Apr 2008 Country:	14-04-2008, 12:24 Thanks! So the callback system probably calls the MSISDN of the subscription and not the GSM roaming number. And some users with specific calling patterns can cause losses to these companies.