AT Command


I am using a Quick Q24 plus module. When I power up the module with the “on/~off” pin held high (4.33 V), the module starts to send “+WBCI: 3, 4079” messages to my hyperterminal indicating internal battery charging. when I now send a simple at command “AT” through hyperterm, I do not get an “OK” response? why? am I missing some pre-setting?

any help is appreciated!