PrePaidGSM.net Forum (Archived) - View Single Post

inquisitor · 14-09-2009, 19:59

Generally UMTS SIM cards are fully downward compatible to GSM, so a Yoigo SIM card should work in your GSM phone. But the question is, whether Yoigo SIMs are admitted everywhere to the movistar network. E.g. In Germany, where O2 has a unilateral national roaming agreement with T-Mobile, O2 customers can only register on T-Mobile in rural areas, where O2 has very little coverage. Maybe Yoigo has something like this in Spain, too.
Petkow will surely know and answer soon.

	(#2)
inquisitor (Offline) Senior Member Prepaid Professionist Posts: 1,399 Join Date: 15 Nov 2006 Country:	14-09-2009, 19:59 Generally UMTS SIM cards are fully downward compatible to GSM, so a Yoigo SIM card should work in your GSM phone. But the question is, whether Yoigo SIMs are admitted everywhere to the movistar network. E.g. In Germany, where O2 has a unilateral national roaming agreement with T-Mobile, O2 customers can only register on T-Mobile in rural areas, where O2 has very little coverage. Maybe Yoigo has something like this in Spain, too. Petkow will surely know and answer soon. terminals: Samsung: Galaxy S5 DuoS (G900FD); BLU: Win HD LTE; Nokia: 1200; Asus: Fonepad 7 ME372CG; Huawei data: E3372, Vodafone R201, K3765, E1762; postpaid: O2 on Business XL; prepaid: DE: Aldi Talk, Lidl; UK: 3; BG: MTel, vivacom; RU: MTS; RS: MTS; UAE: du Tourist SIM; INT'L: toggle mobile VoIP: sipgate.de (German DID); sipgate.co.uk (British DID); ukddi.com (British DID); sipcall.ch (Swiss DID); megafon.bg (Bulgarian DID); InterVoip.com