==== 8.4.2 INVOKE Command ====

[[8._Remote_Method_Invocation_Service| TABLE 8-2]] lists the format required for the Invoke command for a remote method invocation request. 

Field 

Value 

Description 

CLA 

%b1000 yycc or 

%b1010 yycc or 

%b11y0 dddd 

The **cc** in bits (b2,b1) denotes the origin logical channel number in the range 1-3. The **yy** in bits (b4,b3) of the type 4 formats denote secure messaging. 

The **dddd** in bits (b4-b1) denote the origin logical channel number in the range 4-19 using **0** origin notation. The **y** in bit b6 of the type 16 format denotes secure messaging. 

See [[4._Logical_Channels_and_Applet_Selection| TABLE 4-2]] for CLA field encoding formats. 

INS 

value of** invoke_ins** 

**invoke_ins** returned in the previous **select_response** 

P1 

02 

RMI major version # 

P2 

02 

RMI minor version # 

Data 

As described below 

As described below 

Following is the structure of the data part of the request command: 

The **object_id** is the remote object identifier of the object whose remote method is to be invoked. The method to be invoked is specified by the **method_id** item, and each **parameter** is specified by a **param** structure.  

The response format uses the return_response structure as described in [[8.3.5_Return Value Encoding| Section 8.3.5, Return Value Encoding]].