func isTelNumber(num:NSString)->Bool

 {

     var mobile = "^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$"

     var  CM = "^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$"

     var  CU = "^1(3[0-2]|5[256]|8[56])\\d{8}$"

     var  CT = "^1((33|53|8[09])[0-9]|349)\\d{7}$"

     var regextestmobile = NSPredicate(format: "SELF MATCHES %@",mobile)

     var regextestcm = NSPredicate(format: "SELF MATCHES %@",CM )

     var regextestcu = NSPredicate(format: "SELF MATCHES %@" ,CU)

     var regextestct = NSPredicate(format: "SELF MATCHES %@" ,CT)

     if ((regextestmobile.evaluateWithObject(num) == true)

         || (regextestcm.evaluateWithObject(num)  == true)

         || (regextestct.evaluateWithObject(num) == true)

         || (regextestcu.evaluateWithObject(num) == true))

     {

         return true

     }

     else

     {

         return false

     }

 }