on a non-sprint GSM network? I am using a Sprint BB 8830we phone in Kenya. Safaricom is the carrier here and it is a GSM network. I have put in a safaricom SIM card and I am able to make calls, receive calls and send SMS to people using safaricom but I cannot receive SMSs from other people on...
Had a similar problem - outside of the US - with a cell phone carrier. It took 2 calls separated by a few weeks for them to finally stop. I would try back after a while.