You need to send the passcode which you will set yourself, along with the service code which is also mentioned in the help.
Access the contents of your smart phone from anywhere with the help of another phone (not necessarily a smart phone). It’s just like having a remote control of your phone.
• You can set the passcode and hint text. Hint text will allow you to change passcode in case you forget it.
• If you ever forget your passcode you can type hint text which you have entered at the time of setting up passcode.
• You can get contact list from your phone to another phone
• Get call logs from your phone to another phone
• Get the number of messages with the sender name and phone no.
• You can also get message body of the specific message you want
• You can block outgoing calls remotely
• Be able to set a missed call default message or also change your message remotely when there is a missed call