The only way to send text messages with the 7100i, is sending in an email to the phone #'s address ,(ie, Verizon-
,Cingular phone#@mobile.mycingular.com<, Tmobile-phone#@tmomail.net, Nextel-phone#@messaging.nextel..com , Sprint-phone#messaging.sprintpcs.com , At&t- phone#@mobile.att.net, Alltell-phone#@message.alltel.com, Uscellular-phone#@email.uscc.net, Bellmobility-phone#@txt.bellmobility.com, Tellus-phone#@msg.telus.com, Rogers-phone#@pcs.rogers.com) This will be helpful