There is currently a strong need, business and time to launch UMTS in the 900MHz band, which will help operators to extend voice services efficiently, and a high-bandwidth mobile data in the low frequency bands. In Europe, mobile terminal operating according to GSM specifications, into two bands of 900MHz (880-915MHz, 925-960MHz paired with) and 1800 [...]
Component M2M SIM, SIM-Chip
A few days ago my friend Jesus Santos, an engineer at Matrix , has published an article very very interesting (in www.redeweb.com , May issue) for all of us lucky enough (or so I believe) to work the world of GSM. So given the interest, and of course with the permission already granted by the [...]
