Few char not displayed in SMS

Hi everybody,

While sending sms, i checked that some of the character not responding while sending as SMS.
The character are ~ ^ { } | \ [ ] .These character are shown as blank on receiving side.

May i know y is this happening ? and
what should i do to get those character at the receiver side?

with regards
Sunil Rao

How are you sending this SMS?

How are you receiving and displaying it?

Take a look at AT+WCCS