If you have a motorola milestone and you are unable to send a text message try the following

Open the dialer and dial *#*#4636#*#*.

You will get to a menu, select Phone Information.

You can set SMSC number there.

Network operator	SMS Centre Number
O2	+447802000332 (contract) +447802092035 (pay as you go) Alt: +447802000334
T-Mobile	+447958879879
Orange	+447973100973 Alt: +447973100974
Vodafone	+447785016005
Tesco Mobile	+447802092035
Virgin	+447958879890
3 / Three	+447782000800

written by NewsFeeder \\ tags: milestone, SMS