Sorry for renewing topic but this is common problem c702 users have. Solution: you have to use INTERNET not WAP connection. In UK it works in vodafone, tmobile. Havn't tested in orange and 3g. Will not work in o2 payg as they offer only wap connection.

Usually when configuring you got WAP configuration for c702 from networks website. Thats why you should get internet configuration choosing other model like p1i.