Is anyone else seeing problems sending SMS from AT&T to T-Mobile (or other providers)? When my monitoring system sends a message (via a GSM modem with an AT&T SIM card) "Test page 3", AT&T accepts the message, but I get an SMS back in just a few seconds from 1121611611 that says: 1xxxxxxxxxx Error Invalid Number. Please re-send using a valid 10 digit mobile number or valid short code. Test page 3 where xxxxxxxxxx is the 10 digit T-Mobile number I sent a message to. It looks like something on the network is prepending a "1" and then rejecting the message because of the "1". This has been working fine for a while and just quit working today sometime. -- Chris Adams <cmadams@hiwaay.net> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.