Programmable cellular telephone and system

A method for programming a cellular phone comprising the steps of:

• generating a P-code sequence based on product information provided by a user to a customer access center;
• entering said P-code sequence by said user through a keypad on said cellular telephone;
• processing said P-code sequence entered by said user through said keypad to obtain parameter information;
• and
• activating said cellular telephone on a cellular telephone service network according to said parameter information obtained from the entered P-code sequence, whereby a user is able to activate said cellular telephone.

A code module for a cellular telephone comprising:

• input means for receiving input signals from a keypad on said cellular telephone, wherein said input signals are generated by a sequence of keypad inputs encoding parameter information for activation of said cellular telephone;
• and
• a processor means for processing said input signals to obtain said parameter information to cause said cellular phone to be activated on a telephone network based on said parameter information,
• wherein said input signals comprise field identification numbers and P-code segments and said processing means includes a memory containing predetermined information on various parameters addressed by field identification numbers.

A code module for a cellular telephone comprising:

• input means for receiving input signals from a keypad on said cellular telephone, wherein said input signals are generated by a sequence of keypad inputs encoding parameter information for activation of said cellular telephone;
• and
• a processor means for processing said input signals to obtain said parameter information to cause said cellular phone to be activated on a telephone network based on said parameter information,
• wherein said processing means includes descrambling means for descrambling scrambled portions of said input signals based on ESN and key codes stored in said cellular phone.

A code module for a cellular telephone comprising:

• input means for receiving input signals from a keypad on said cellular telephone, wherein said input signals are generated by a sequence of keypad inputs encoding parameter information for activation of said cellular telephone;
• and
• a processor means for processing said input signals to obtain said parameter information to cause said cellular phone to be activated on a telephone network based on said parameter information, wherein:
• said input signals comprise a P-code sequence including a preamble, at least one scrambled P-code segment, a postamble, and a sequence terminator;
• and
• said processing means comprises:
• descrambling means for descrambling said at least one scrambled P-code segment based on ESN and key codes stored in said cellular phone to obtain at least one descrambled P-code field segment comprising a field identification number and corresponding P-code segment information;
• checking means for checking the integrity of said P-code sequence entered in said cellular phone including said preamble, said at least one descrambled P-code segment, said postamble, and said sequence terminator;
• and
• decompressing means for determining parameter information from each field identification number and corresponding P-code field segment of said at least one descrambled P-code segment and for transmitting said parameter information to a number assignment module NAM in said cellular telephone;
• whereby, required NAM information, optional NAM information, and optional personal settings information may be stored in the NAM to enable activation of the cellular phone on a local telephone network by the user.

A method for programming a cellular phone comprising the steps of:

• generating a P-code sequence;
• entering said P-code sequence through a keypad on said cellular telephone;
• processing said P-code sequence entered through said keypad to obtain parameter information;
• and
• activating said cellular telephone on a cellular telephone service network according to said parameter information obtained from the entered P-code sequence, whereby a user is able to activate said cellular telephone, wherein:
• said generating step comprises the steps of:
• obtaining ESN information for the cellular phone;
• obtaining number assignment module NAM information including at least phone number and station identification SID information;
• encoding said NAM information in at least one P-code segment;
• scrambling said at least one P-code segment based on said obtained ESN information and on scramble keys generated from key codes;
• and
• generating said P-code sequence including said at least one scrambled P-code segment.